172914261 has 16 divisors (see below), whose sum is σ = 254345280. Its totient is φ = 103812480.

The previous prime is 172914233. The next prime is 172914263. The reversal of 172914261 is 162419271.

It is a happy number.

It is not a de Polignac number, because 172914261 - 2⁵ = 172914229 is a prime.

It is a super-2 number, since 2×172914261² = 59798683314352242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172914263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52471 + ... + 55668.

It is an arithmetic number, because the mean of its divisors is an integer number (15896580).

Almost surely, 2^172914261 is an apocalyptic number.

It is an amenable number.

172914261 is a deficient number, since it is larger than the sum of its proper divisors (81431019).

172914261 is a wasteful number, since it uses less digits than its factorization.

172914261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108196.

The product of its digits is 6048, while the sum is 33.

The square root of 172914261 is about 13149.6867263064. The cubic root of 172914261 is about 557.1133997857.

The spelling of 172914261 in words is "one hundred seventy-two million, nine hundred fourteen thousand, two hundred sixty-one".