1150065280 has 384 divisors, whose sum is σ = 3583872000. Its totient is φ = 352235520.

The previous prime is 1150065277. The next prime is 1150065281. The reversal of 1150065280 is 825600511.

It is a super-2 number, since 2×1150065280² = 2645300296522956800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150065281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37098865 + ... + 37098895.

It is an arithmetic number, because the mean of its divisors is an integer number (9333000).

Almost surely, 2^1150065280 is an apocalyptic number.

1150065280 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 1150065280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1791936000).

1150065280 is an abundant number, since it is smaller than the sum of its proper divisors (2433806720).

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

1150065280 is an equidigital number, since it uses as much as digits as its factorization.

1150065280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 1150065280 is about 33912.6124030574. The cubic root of 1150065280 is about 1047.7093769050.

Adding to 1150065280 its reverse (825600511), we get a palindrome (1975665791).

The spelling of 1150065280 in words is "one billion, one hundred fifty million, sixty-five thousand, two hundred eighty".