172014857 has 8 divisors (see below), whose sum is σ = 208152576. Its totient is φ = 138768192.

The previous prime is 172014797. The next prime is 172014859. The reversal of 172014857 is 758410271.

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 172014857 - 2⁶ = 172014793 is a prime.

It is a super-2 number, since 2×172014857² = 59178222057460898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172014859) 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 7 ways as a sum of consecutive naturals, for example, 722633 + ... + 722870.

It is an arithmetic number, because the mean of its divisors is an integer number (26019072).

Almost surely, 2^172014857 is an apocalyptic number.

172014857 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

172014857 is a deficient number, since it is larger than the sum of its proper divisors (36137719).

172014857 is a wasteful number, since it uses less digits than its factorization.

172014857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445527.

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 172014857 is about 13115.4434541879. The cubic root of 172014857 is about 556.1457886331.

The spelling of 172014857 in words is "one hundred seventy-two million, fourteen thousand, eight hundred fifty-seven".