189503112 has 32 divisors (see below), whose sum is σ = 498693600. Its totient is φ = 59842944.

The previous prime is 189503087. The next prime is 189503129. The reversal of 189503112 is 211305981.

It is a super-2 number, since 2×189503112² = 71822858915369088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 189503112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207333 + ... + 208244.

It is an arithmetic number, because the mean of its divisors is an integer number (15584175).

Almost surely, 2^189503112 is an apocalyptic number.

189503112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189503112 is an abundant number, since it is smaller than the sum of its proper divisors (309190488).

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

189503112 is a wasteful number, since it uses less digits than its factorization.

189503112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415605 (or 415601 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 189503112 is about 13766.0129304022. The cubic root of 189503112 is about 574.3881198677.

The spelling of 189503112 in words is "one hundred eighty-nine million, five hundred three thousand, one hundred twelve".