172392011 has 8 divisors (see below), whose sum is σ = 188580864. Its totient is φ = 156289320.

The previous prime is 172392001. The next prime is 172392049. The reversal of 172392011 is 110293271.

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

It is not a de Polignac number, because 172392011 - 2¹⁴ = 172375627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172392001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17315 + ... + 25388.

It is an arithmetic number, because the mean of its divisors is an integer number (23572608).

Almost surely, 2^172392011 is an apocalyptic number.

172392011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

172392011 is a deficient number, since it is larger than the sum of its proper divisors (16188853).

172392011 is a wasteful number, since it uses less digits than its factorization.

172392011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43081.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 172392011 is about 13129.8138219854. The cubic root of 172392011 is about 556.5519541238.

The spelling of 172392011 in words is "one hundred seventy-two million, three hundred ninety-two thousand, eleven".