49161172 has 12 divisors (see below), whose sum is σ = 86120020. Its totient is φ = 24555456.

The previous prime is 49161139. The next prime is 49161191. The reversal of 49161172 is 27116194.

It can be written as a sum of positive squares in 2 ways, for example, as 26255376 + 22905796 = 5124^2 + 4786^2 .

It is a congruent number.

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, 1473 + ... + 10024.

Almost surely, 2^49161172 is an apocalyptic number.

It is an amenable number.

49161172 is a deficient number, since it is larger than the sum of its proper divisors (36958848).

49161172 is a wasteful number, since it uses less digits than its factorization.

49161172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12570 (or 12568 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 49161172 is about 7011.5028346283. The cubic root of 49161172 is about 366.3313411805.

The spelling of 49161172 in words is "forty-nine million, one hundred sixty-one thousand, one hundred seventy-two".