1051136620 has 48 divisors (see below), whose sum is σ = 2347601760. Its totient is φ = 394205184.

The previous prime is 1051136587. The next prime is 1051136627. The reversal of 1051136620 is 266311501.

It is a super-2 number, since 2×1051136620² = 2209776387810048800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051136627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22602 + ... + 51118.

It is an arithmetic number, because the mean of its divisors is an integer number (48908370).

Almost surely, 2^1051136620 is an apocalyptic number.

1051136620 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 1051136620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1173800880).

1051136620 is an abundant number, since it is smaller than the sum of its proper divisors (1296465140).

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

1051136620 is a wasteful number, since it uses less digits than its factorization.

1051136620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28642 (or 28640 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1051136620 is about 32421.2371756539. The cubic root of 1051136620 is about 1016.7629726321.

The spelling of 1051136620 in words is "one billion, fifty-one million, one hundred thirty-six thousand, six hundred twenty".