115639632 has 30 divisors (see below), whose sum is σ = 323630762. Its totient is φ = 38546496.

The previous prime is 115639631. The next prime is 115639673. The reversal of 115639632 is 236936511.

115639632 is a `hidden beast` number, since 1 + 1 + 563 + 96 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 70963776 + 44675856 = 8424^2 + 6684^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115639631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 401383 + ... + 401670.

Almost surely, 2^115639632 is an apocalyptic number.

115639632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115639632 is an abundant number, since it is smaller than the sum of its proper divisors (207991130).

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

115639632 is a wasteful number, since it uses less digits than its factorization.

115639632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803067 (or 803058 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 115639632 is about 10753.5869364599. The cubic root of 115639632 is about 487.1943393585.

The spelling of 115639632 in words is "one hundred fifteen million, six hundred thirty-nine thousand, six hundred thirty-two".