157431671 has 8 divisors (see below), whose sum is σ = 162658944. Its totient is φ = 152213760.

The previous prime is 157431653. The next prime is 157431719. The reversal of 157431671 is 176134751.

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

It is a cyclic number.

It is not a de Polignac number, because 157431671 - 2¹⁸ = 157169527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157431601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52895 + ... + 55791.

It is an arithmetic number, because the mean of its divisors is an integer number (20332368).

Almost surely, 2^157431671 is an apocalyptic number.

157431671 is a deficient number, since it is larger than the sum of its proper divisors (5227273).

157431671 is a wasteful number, since it uses less digits than its factorization.

157431671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4681.

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

The square root of 157431671 is about 12547.1778101691. The cubic root of 157431671 is about 539.9630415949.

The spelling of 157431671 in words is "one hundred fifty-seven million, four hundred thirty-one thousand, six hundred seventy-one".