157112173 has 2 divisors, whose sum is σ = 157112174. Its totient is φ = 157112172.

The previous prime is 157112171. The next prime is 157112213. The reversal of 157112173 is 371211751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120956004 + 36156169 = 10998^2 + 6013^2 .

It is a cyclic number.

It is not a de Polignac number, because 157112173 - 2¹ = 157112171 is a prime.

Together with 157112171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157112171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78556086 + 78556087.

It is an arithmetic number, because the mean of its divisors is an integer number (78556087).

Almost surely, 2^157112173 is an apocalyptic number.

It is an amenable number.

157112173 is a deficient number, since it is larger than the sum of its proper divisors (1).

157112173 is an equidigital number, since it uses as much as digits as its factorization.

157112173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1470, while the sum is 28.

The square root of 157112173 is about 12534.4394768972. The cubic root of 157112173 is about 539.5975201662.

The spelling of 157112173 in words is "one hundred fifty-seven million, one hundred twelve thousand, one hundred seventy-three".