172140265 has 16 divisors (see below), whose sum is σ = 226180800. Its totient is φ = 124729920.

The previous prime is 172140253. The next prime is 172140277. The reversal of 172140265 is 562041271.

It is an interprime number because it is at equal distance from previous prime (172140253) and next prime (172140277).

It is not a de Polignac number, because 172140265 - 2²³ = 163751657 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9586 + ... + 20884.

It is an arithmetic number, because the mean of its divisors is an integer number (14136300).

Almost surely, 2^172140265 is an apocalyptic number.

It is an amenable number.

172140265 is a deficient number, since it is larger than the sum of its proper divisors (54040535).

172140265 is a wasteful number, since it uses less digits than its factorization.

172140265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11592.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 172140265 is about 13120.2235118156. The cubic root of 172140265 is about 556.2809091102.

The spelling of 172140265 in words is "one hundred seventy-two million, one hundred forty thousand, two hundred sixty-five".