1051361280 has 384 divisors, whose sum is σ = 3925808640. Its totient is φ = 259522560.

The previous prime is 1051361279. The next prime is 1051361281. The reversal of 1051361280 is 821631501.

1051361280 is a `hidden beast` number, since 10 + 513 + 61 + 2 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (1051361279) and next prime (1051361281).

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×1051361280² = 2210721082166476800, which contains 22 as substring.

It is a nialpdrome in base 4.

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (1051361281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33914865 + ... + 33914895.

It is an arithmetic number, because the mean of its divisors is an integer number (10223460).

Almost surely, 2^1051361280 is an apocalyptic number.

1051361280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1051361280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1962904320).

1051361280 is an abundant number, since it is smaller than the sum of its proper divisors (2874447360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1051361280 is an equidigital number, since it uses as much as digits as its factorization.

1051361280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1051361280 is about 32424.7016948499. The cubic root of 1051361280 is about 1016.8354052392.

Adding to 1051361280 its reverse (821631501), we get a palindrome (1872992781).

The spelling of 1051361280 in words is "one billion, fifty-one million, three hundred sixty-one thousand, two hundred eighty".