167142667 has 4 divisors (see below), whose sum is σ = 168704856. Its totient is φ = 165580480.

The previous prime is 167142643. The next prime is 167142683. The reversal of 167142667 is 766241761.

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

It is a cyclic number.

It is not a de Polignac number, because 167142667 - 2⁷ = 167142539 is a prime.

It is a super-2 number, since 2×167142667² = 55873342263745778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167142617) 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, 780934 + ... + 781147.

It is an arithmetic number, because the mean of its divisors is an integer number (42176214).

Almost surely, 2^167142667 is an apocalyptic number.

167142667 is a deficient number, since it is larger than the sum of its proper divisors (1562189).

167142667 is a wasteful number, since it uses less digits than its factorization.

167142667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562188.

The product of its digits is 84672, while the sum is 40.

The square root of 167142667 is about 12928.3667568645. The cubic root of 167142667 is about 550.8446163370.

The spelling of 167142667 in words is "one hundred sixty-seven million, one hundred forty-two thousand, six hundred sixty-seven".