167312393 has 4 divisors (see below), whose sum is σ = 168049680. Its totient is φ = 166575108.

The previous prime is 167312389. The next prime is 167312413. The reversal of 167312393 is 393213761.

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, and also an emirpimes, since its reverse is a distinct semiprime: 393213761 = 193 ⋅2037377.

It is a cyclic number.

It is not a de Polignac number, because 167312393 - 2² = 167312389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167312323) 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, 368303 + ... + 368756.

It is an arithmetic number, because the mean of its divisors is an integer number (42012420).

Almost surely, 2^167312393 is an apocalyptic number.

It is an amenable number.

167312393 is a deficient number, since it is larger than the sum of its proper divisors (737287).

167312393 is an equidigital number, since it uses as much as digits as its factorization.

167312393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737286.

The product of its digits is 20412, while the sum is 35.

The square root of 167312393 is about 12934.9291841896. The cubic root of 167312393 is about 551.0310060582.

The spelling of 167312393 in words is "one hundred sixty-seven million, three hundred twelve thousand, three hundred ninety-three".