1103855172 has 24 divisors (see below), whose sum is σ = 2943614016. Its totient is φ = 315387168.

The previous prime is 1103855167. The next prime is 1103855191. The reversal of 1103855172 is 2715583011.

It is a super-2 number, since 2×1103855172² = 2436992481502299168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6570483 + ... + 6570650.

It is an arithmetic number, because the mean of its divisors is an integer number (122650584).

Almost surely, 2^1103855172 is an apocalyptic number.

1103855172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1103855172 is an abundant number, since it is smaller than the sum of its proper divisors (1839758844).

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

1103855172 is a wasteful number, since it uses less digits than its factorization.

1103855172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13141147 (or 13141145 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 1103855172 is about 33224.3159749001. The cubic root of 1103855172 is about 1033.4846540334.

The spelling of 1103855172 in words is "one billion, one hundred three million, eight hundred fifty-five thousand, one hundred seventy-two".