1109953512 has 48 divisors (see below), whose sum is σ = 3103102080. Its totient is φ = 358048800.

The previous prime is 1109953483. The next prime is 1109953513. The reversal of 1109953512 is 2153599011.

1109953512 is a `hidden beast` number, since 1 + 1 + 0 + 99 + 53 + 512 = 666.

It is a super-2 number, since 2×1109953512² = 2463993597602268288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1109953513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246414 + ... + 250877.

It is an arithmetic number, because the mean of its divisors is an integer number (64647960).

Almost surely, 2^1109953512 is an apocalyptic number.

1109953512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1109953512 is an abundant number, since it is smaller than the sum of its proper divisors (1993148568).

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

1109953512 is a wasteful number, since it uses less digits than its factorization.

1109953512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497334 (or 497327 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

The square root of 1109953512 is about 33315.9648216887. The cubic root of 1109953512 is about 1035.3843507062.

The spelling of 1109953512 in words is "one billion, one hundred nine million, nine hundred fifty-three thousand, five hundred twelve".