167331161 has 4 divisors (see below), whose sum is σ = 168333312. Its totient is φ = 166329012.

The previous prime is 167331137. The next prime is 167331217. The reversal of 167331161 is 161133761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-167331161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167331961) 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, 500825 + ... + 501158.

It is an arithmetic number, because the mean of its divisors is an integer number (42083328).

Almost surely, 2^167331161 is an apocalyptic number.

It is an amenable number.

167331161 is a deficient number, since it is larger than the sum of its proper divisors (1002151).

167331161 is a wasteful number, since it uses less digits than its factorization.

167331161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002150.

The product of its digits is 2268, while the sum is 29.

The square root of 167331161 is about 12935.6546413392. The cubic root of 167331161 is about 551.0516089617.

The spelling of 167331161 in words is "one hundred sixty-seven million, three hundred thirty-one thousand, one hundred sixty-one".