172650465 has 24 divisors (see below), whose sum is σ = 322281960. Its totient is φ = 84996864.

The previous prime is 172650409. The next prime is 172650469. The reversal of 172650465 is 564056271.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 69696 + 172580769 = 264^2 + 13137^2 .

It is not a de Polignac number, because 172650465 - 2²⁰ = 171601889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172650469) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146980 + ... + 148149.

It is an arithmetic number, because the mean of its divisors is an integer number (13428415).

Almost surely, 2^172650465 is an apocalyptic number.

172650465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172650465 is a deficient number, since it is larger than the sum of its proper divisors (149631495).

172650465 is a wasteful number, since it uses less digits than its factorization.

172650465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295153 (or 295150 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 172650465 is about 13139.6523926624. The cubic root of 172650465 is about 556.8299470027.

The spelling of 172650465 in words is "one hundred seventy-two million, six hundred fifty thousand, four hundred sixty-five".