36161172 has 18 divisors (see below), whose sum is σ = 91407498. Its totient is φ = 12053712.

The previous prime is 36161149. The next prime is 36161179. The reversal of 36161172 is 27116163.

It can be written as a sum of positive squares in only one way, i.e., 32216976 + 3944196 = 5676^2 + 1986^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36161179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 502203 + ... + 502274.

Almost surely, 2^36161172 is an apocalyptic number.

It is an amenable number.

36161172 is an abundant number, since it is smaller than the sum of its proper divisors (55246326).

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

36161172 is a wasteful number, since it uses less digits than its factorization.

36161172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004487 (or 1004482 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 36161172 is about 6013.4160009100. The cubic root of 36161172 is about 330.6847489642.

The spelling of 36161172 in words is "thirty-six million, one hundred sixty-one thousand, one hundred seventy-two".