157131271 has 8 divisors (see below), whose sum is σ = 172101888. Its totient is φ = 142275000.

The previous prime is 157131269. The next prime is 157131287. The reversal of 157131271 is 172131751.

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 157131271 - 2¹ = 157131269 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 (157131211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25695 + ... + 31216.

It is an arithmetic number, because the mean of its divisors is an integer number (21512736).

Almost surely, 2^157131271 is an apocalyptic number.

157131271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

157131271 is a deficient number, since it is larger than the sum of its proper divisors (14970617).

157131271 is a wasteful number, since it uses less digits than its factorization.

157131271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57173.

The product of its digits is 1470, while the sum is 28.

The square root of 157131271 is about 12535.2012748101. The cubic root of 157131271 is about 539.6193831356.

The spelling of 157131271 in words is "one hundred fifty-seven million, one hundred thirty-one thousand, two hundred seventy-one".