172956253 has 2 divisors, whose sum is σ = 172956254. Its totient is φ = 172956252.

The previous prime is 172956229. The next prime is 172956263. The reversal of 172956253 is 352659271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146361604 + 26594649 = 12098^2 + 5157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172956253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172956263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86478126 + 86478127.

It is an arithmetic number, because the mean of its divisors is an integer number (86478127).

Almost surely, 2^172956253 is an apocalyptic number.

It is an amenable number.

172956253 is a deficient number, since it is larger than the sum of its proper divisors (1).

172956253 is an equidigital number, since it uses as much as digits as its factorization.

172956253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 40.

The square root of 172956253 is about 13151.2833214101. The cubic root of 172956253 is about 557.1584942200.

The spelling of 172956253 in words is "one hundred seventy-two million, nine hundred fifty-six thousand, two hundred fifty-three".