172054957 has 2 divisors, whose sum is σ = 172054958. Its totient is φ = 172054956.

The previous prime is 172054931. The next prime is 172055017. The reversal of 172054957 is 759450271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108868356 + 63186601 = 10434^2 + 7949^2 .

It is a cyclic number.

It is not a de Polignac number, because 172054957 - 2²⁷ = 37837229 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172054457) by changing a digit.

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 as a sum of consecutive naturals, namely, 86027478 + 86027479.

It is an arithmetic number, because the mean of its divisors is an integer number (86027479).

Almost surely, 2^172054957 is an apocalyptic number.

It is an amenable number.

172054957 is a deficient number, since it is larger than the sum of its proper divisors (1).

172054957 is an equidigital number, since it uses as much as digits as its factorization.

172054957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 40.

The square root of 172054957 is about 13116.9720972487. The cubic root of 172054957 is about 556.1890013993.

The spelling of 172054957 in words is "one hundred seventy-two million, fifty-four thousand, nine hundred fifty-seven".