36138664 has 16 divisors (see below), whose sum is σ = 67886100. Its totient is φ = 18035712.

The previous prime is 36138659. The next prime is 36138689. The reversal of 36138664 is 46683163.

36138664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 35402500 + 736164 = 5950^2 + 858^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702 + ... + 8530.

Almost surely, 2^36138664 is an apocalyptic number.

It is an amenable number.

36138664 is a deficient number, since it is larger than the sum of its proper divisors (31747436).

36138664 is a wasteful number, since it uses less digits than its factorization.

36138664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8412 (or 8408 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The square root of 36138664 is about 6011.5442275675. The cubic root of 36138664 is about 330.6161247399.

The spelling of 36138664 in words is "thirty-six million, one hundred thirty-eight thousand, six hundred sixty-four".