172456120 has 16 divisors (see below), whose sum is σ = 388026360. Its totient is φ = 68982432.

The previous prime is 172456111. The next prime is 172456121. The reversal of 172456120 is 21654271.

172456120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×172456120² = 59482226650908800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172456121) 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, 2155662 + ... + 2155741.

Almost surely, 2^172456120 is an apocalyptic number.

172456120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172456120 is an abundant number, since it is smaller than the sum of its proper divisors (215570240).

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

172456120 is a wasteful number, since it uses less digits than its factorization.

172456120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311414 (or 4311410 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 172456120 is about 13132.2549472663. The cubic root of 172456120 is about 556.6209356020.

The spelling of 172456120 in words is "one hundred seventy-two million, four hundred fifty-six thousand, one hundred twenty".