115512030 has 48 divisors (see below), whose sum is σ = 304578144. Its totient is φ = 30367680.

The previous prime is 115511971. The next prime is 115512043. The reversal of 115512030 is 30215511.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 115511994 and 115512012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2649 + ... + 15428.

It is an arithmetic number, because the mean of its divisors is an integer number (6345378).

Almost surely, 2^115512030 is an apocalyptic number.

115512030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115512030 is an abundant number, since it is smaller than the sum of its proper divisors (189066114).

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

115512030 is a wasteful number, since it uses less digits than its factorization.

115512030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18161 (or 18158 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 115512030 is about 10747.6523017820. The cubic root of 115512030 is about 487.0150759837.

Adding to 115512030 its reverse (30215511), we get a palindrome (145727541).

The spelling of 115512030 in words is "one hundred fifteen million, five hundred twelve thousand, thirty".