172057120 has 24 divisors (see below), whose sum is σ = 406485324. Its totient is φ = 68822784.

The previous prime is 172057117. The next prime is 172057121. The reversal of 172057120 is 21750271.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 143712144 + 28344976 = 11988^2 + 5324^2 .

It is not an unprimeable number, because it can be changed into a prime (172057121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537519 + ... + 537838.

Almost surely, 2^172057120 is an apocalyptic number.

172057120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172057120 is an abundant number, since it is smaller than the sum of its proper divisors (234428204).

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

172057120 is a wasteful number, since it uses less digits than its factorization.

172057120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075372 (or 1075364 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 172057120 is about 13117.0545474203. The cubic root of 172057120 is about 556.1913321115.

The spelling of 172057120 in words is "one hundred seventy-two million, fifty-seven thousand, one hundred twenty".