115661832 has 128 divisors (see below), whose sum is σ = 345461760. Its totient is φ = 31806720.

The previous prime is 115661827. The next prime is 115661851. The reversal of 115661832 is 238166511.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 115661793 and 115661802.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229693 + ... + 230195.

It is an arithmetic number, because the mean of its divisors is an integer number (2698920).

Almost surely, 2^115661832 is an apocalyptic number.

115661832 is a gapful number since it is divisible by the number (12) 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 115661832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172730880).

115661832 is an abundant number, since it is smaller than the sum of its proper divisors (229799928).

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

115661832 is a wasteful number, since it uses less digits than its factorization.

115661832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 599 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 115661832 is about 10754.6191006469. The cubic root of 115661832 is about 487.2255138561.

The spelling of 115661832 in words is "one hundred fifteen million, six hundred sixty-one thousand, eight hundred thirty-two".