167487161 has 4 divisors (see below), whose sum is σ = 167527824. Its totient is φ = 167446500.

The previous prime is 167487149. The next prime is 167487251. The reversal of 167487161 is 161784761.

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-167487161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167487101) 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, 13355 + ... + 22656.

It is an arithmetic number, because the mean of its divisors is an integer number (41881956).

Almost surely, 2^167487161 is an apocalyptic number.

It is an amenable number.

167487161 is a deficient number, since it is larger than the sum of its proper divisors (40663).

167487161 is an equidigital number, since it uses as much as digits as its factorization.

167487161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40662.

The product of its digits is 56448, while the sum is 41.

The square root of 167487161 is about 12941.6830821961. The cubic root of 167487161 is about 551.2228011254. Note that the first 3 decimals are identical.

The spelling of 167487161 in words is "one hundred sixty-seven million, four hundred eighty-seven thousand, one hundred sixty-one".