172057113 has 6 divisors (see below), whose sum is σ = 248526954. Its totient is φ = 114704736.

The previous prime is 172057049. The next prime is 172057117. The reversal of 172057113 is 311750271.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 124612569 + 47444544 = 11163^2 + 6888^2 .

It is not a de Polignac number, because 172057113 - 2⁶ = 172057049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (172057117) 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, 9558720 + ... + 9558737.

It is an arithmetic number, because the mean of its divisors is an integer number (41421159).

Almost surely, 2^172057113 is an apocalyptic number.

It is an amenable number.

172057113 is a deficient number, since it is larger than the sum of its proper divisors (76469841).

172057113 is a wasteful number, since it uses less digits than its factorization.

172057113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19117463 (or 19117460 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The square root of 172057113 is about 13117.0542805921. The cubic root of 172057113 is about 556.1913245688.

The spelling of 172057113 in words is "one hundred seventy-two million, fifty-seven thousand, one hundred thirteen".