172317954 has 32 divisors (see below), whose sum is σ = 372588480. Its totient is φ = 52944192.

The previous prime is 172317953. The next prime is 172317961. The reversal of 172317954 is 459713271.

It is a super-2 number, since 2×172317954² = 59386954541492232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172317953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16209 + ... + 24644.

It is an arithmetic number, because the mean of its divisors is an integer number (11643390).

Almost surely, 2^172317954 is an apocalyptic number.

172317954 is an abundant number, since it is smaller than the sum of its proper divisors (200270526).

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

172317954 is a wasteful number, since it uses less digits than its factorization.

172317954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40914.

The product of its digits is 52920, while the sum is 39.

The square root of 172317954 is about 13126.9933343474. The cubic root of 172317954 is about 556.4722472757.

The spelling of 172317954 in words is "one hundred seventy-two million, three hundred seventeen thousand, nine hundred fifty-four".