172267965 has 80 divisors (see below), whose sum is σ = 331288320. Its totient is φ = 85380480.

The previous prime is 172267951. The next prime is 172267993. The reversal of 172267965 is 569762271.

172267965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172267965 - 2¹⁵ = 172235197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 172267965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 469212 + ... + 469578.

It is an arithmetic number, because the mean of its divisors is an integer number (4141104).

Almost surely, 2^172267965 is an apocalyptic number.

172267965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172267965 is a deficient number, since it is larger than the sum of its proper divisors (159020355).

172267965 is a wasteful number, since it uses less digits than its factorization.

172267965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 455 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 172267965 is about 13125.0891425544. The cubic root of 172267965 is about 556.4184316772.

The spelling of 172267965 in words is "one hundred seventy-two million, two hundred sixty-seven thousand, nine hundred sixty-five".