36139564 has 12 divisors (see below), whose sum is σ = 63376488. Its totient is φ = 18032000.

The previous prime is 36139559. The next prime is 36139567. The reversal of 36139564 is 46593163.

It is a super-2 number, since 2×36139564² = 2612136172220192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (36139567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7237 + ... + 11164.

It is an arithmetic number, because the mean of its divisors is an integer number (5281374).

Almost surely, 2^36139564 is an apocalyptic number.

It is an amenable number.

36139564 is a deficient number, since it is larger than the sum of its proper divisors (27236924).

36139564 is a wasteful number, since it uses less digits than its factorization.

36139564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18896 (or 18894 counting only the distinct ones).

The product of its digits is 58320, while the sum is 37.

The square root of 36139564 is about 6011.6190830757. The cubic root of 36139564 is about 330.6188692800.

The spelling of 36139564 in words is "thirty-six million, one hundred thirty-nine thousand, five hundred sixty-four".