167157431 has 8 divisors (see below), whose sum is σ = 191115264. Its totient is φ = 143219160.

The previous prime is 167157391. The next prime is 167157439. The reversal of 167157431 is 134751761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 167157431 - 2¹⁴ = 167141047 is a prime.

It is a super-2 number, since 2×167157431² = 55883213477039522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 167157391 and 167157400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167157439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31346 + ... + 36288.

It is an arithmetic number, because the mean of its divisors is an integer number (23889408).

Almost surely, 2^167157431 is an apocalyptic number.

167157431 is a deficient number, since it is larger than the sum of its proper divisors (23957833).

167157431 is an equidigital number, since it uses as much as digits as its factorization.

167157431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9781.

The product of its digits is 17640, while the sum is 35.

The square root of 167157431 is about 12928.9377367207. The cubic root of 167157431 is about 550.8608348777.

The spelling of 167157431 in words is "one hundred sixty-seven million, one hundred fifty-seven thousand, four hundred thirty-one".