167745157 has 2 divisors, whose sum is σ = 167745158. Its totient is φ = 167745156.

The previous prime is 167745139. The next prime is 167745169. The reversal of 167745157 is 751547761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102232321 + 65512836 = 10111^2 + 8094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-167745157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167748157) 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, 83872578 + 83872579.

It is an arithmetic number, because the mean of its divisors is an integer number (83872579).

Almost surely, 2^167745157 is an apocalyptic number.

It is an amenable number.

167745157 is a deficient number, since it is larger than the sum of its proper divisors (1).

167745157 is an equidigital number, since it uses as much as digits as its factorization.

167745157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 205800, while the sum is 43.

The square root of 167745157 is about 12951.6468836978. The cubic root of 167745157 is about 551.5056891151.

The spelling of 167745157 in words is "one hundred sixty-seven million, seven hundred forty-five thousand, one hundred fifty-seven".