167351881 has 2 divisors, whose sum is σ = 167351882. Its totient is φ = 167351880.

The previous prime is 167351831. The next prime is 167351903. The reversal of 167351881 is 188153761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151511481 + 15840400 = 12309^2 + 3980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-167351881 is a prime.

It is a super-2 number, since 2×167351881² = 56013304148476322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (167351801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83675940 + 83675941.

It is an arithmetic number, because the mean of its divisors is an integer number (83675941).

Almost surely, 2^167351881 is an apocalyptic number.

It is an amenable number.

167351881 is a deficient number, since it is larger than the sum of its proper divisors (1).

167351881 is an equidigital number, since it uses as much as digits as its factorization.

167351881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 40.

The square root of 167351881 is about 12936.4555037305. The cubic root of 167351881 is about 551.0743529185.

The spelling of 167351881 in words is "one hundred sixty-seven million, three hundred fifty-one thousand, eight hundred eighty-one".