36645172 has 6 divisors (see below), whose sum is σ = 64129058. Its totient is φ = 18322584.

The previous prime is 36645163. The next prime is 36645199. The reversal of 36645172 is 27154663.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 35117476 + 1527696 = 5926^2 + 1236^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4580643 + ... + 4580650.

Almost surely, 2^36645172 is an apocalyptic number.

It is an amenable number.

36645172 is a deficient number, since it is larger than the sum of its proper divisors (27483886).

36645172 is a wasteful number, since it uses less digits than its factorization.

36645172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9161297 (or 9161295 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 36645172 is about 6053.5255843186. The cubic root of 36645172 is about 332.1535676069.

It can be divided in two parts, 3664 and 5172, that added together give a square (8836 = 94²).

The spelling of 36645172 in words is "thirty-six million, six hundred forty-five thousand, one hundred seventy-two".