167161157 has 4 divisors (see below), whose sum is σ = 167190156. Its totient is φ = 167132160.

The previous prime is 167161147. The next prime is 167161213. The reversal of 167161157 is 751161761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 165920161 + 1240996 = 12881^2 + 1114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-167161157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167161117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2594 + ... + 18467.

It is an arithmetic number, because the mean of its divisors is an integer number (41797539).

Almost surely, 2^167161157 is an apocalyptic number.

It is an amenable number.

167161157 is a deficient number, since it is larger than the sum of its proper divisors (28999).

167161157 is an equidigital number, since it uses as much as digits as its factorization.

167161157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28998.

The product of its digits is 8820, while the sum is 35.

The square root of 167161157 is about 12929.0818312825. The cubic root of 167161157 is about 550.8649278102.

The spelling of 167161157 in words is "one hundred sixty-seven million, one hundred sixty-one thousand, one hundred fifty-seven".