36139936 has 24 divisors (see below), whose sum is σ = 81315360. Its totient is φ = 15488448.

The previous prime is 36139927. The next prime is 36139951. The reversal of 36139936 is 63993163.

It is a happy number.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80446 + ... + 80893.

It is an arithmetic number, because the mean of its divisors is an integer number (3388140).

Almost surely, 2^36139936 is an apocalyptic number.

It is an amenable number.

36139936 is an abundant number, since it is smaller than the sum of its proper divisors (45175424).

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

36139936 is a wasteful number, since it uses less digits than its factorization.

36139936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161356 (or 161348 counting only the distinct ones).

The product of its digits is 78732, while the sum is 40.

The square root of 36139936 is about 6011.6500230802. The cubic root of 36139936 is about 330.6200036766.

The spelling of 36139936 in words is "thirty-six million, one hundred thirty-nine thousand, nine hundred thirty-six".