167080981 has 4 divisors (see below), whose sum is σ = 176909292. Its totient is φ = 157252672.

The previous prime is 167080973. The next prime is 167081017. The reversal of 167080981 is 189080761.

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 74132100 + 92948881 = 8610^2 + 9641^2 .

It is a cyclic number.

It is not a de Polignac number, because 167080981 - 2³ = 167080973 is a prime.

It is a super-2 number, since 2×167080981² = 55832108423844722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167080951) 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, 4914130 + ... + 4914163.

It is an arithmetic number, because the mean of its divisors is an integer number (44227323).

Almost surely, 2^167080981 is an apocalyptic number.

It is an amenable number.

167080981 is a deficient number, since it is larger than the sum of its proper divisors (9828311).

167080981 is an equidigital number, since it uses as much as digits as its factorization.

167080981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9828310.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 167080981 is about 12925.9808525311. The cubic root of 167080981 is about 550.7768427345.

The spelling of 167080981 in words is "one hundred sixty-seven million, eighty thousand, nine hundred eighty-one".