172951117 has 8 divisors (see below), whose sum is σ = 180740736. Its totient is φ = 165332832.

The previous prime is 172951109. The next prime is 172951123. The reversal of 172951117 is 711159271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172951117 - 2³ = 172951109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172951127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40768 + ... + 44809.

It is an arithmetic number, because the mean of its divisors is an integer number (22592592).

Almost surely, 2^172951117 is an apocalyptic number.

It is an amenable number.

172951117 is a deficient number, since it is larger than the sum of its proper divisors (7789619).

172951117 is an equidigital number, since it uses as much as digits as its factorization.

172951117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85667.

The product of its digits is 4410, while the sum is 34.

The square root of 172951117 is about 13151.0880538456. The cubic root of 172951117 is about 557.1529791561.

The spelling of 172951117 in words is "one hundred seventy-two million, nine hundred fifty-one thousand, one hundred seventeen".