157280831 has 8 divisors (see below), whose sum is σ = 164561280. Its totient is φ = 150037272.

The previous prime is 157280807. The next prime is 157280857. The reversal of 157280831 is 138082751.

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 157280831 - 2¹⁴ = 157264447 is a prime.

It is a super-2 number, since 2×157280831² = 49474519600101122, 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 = 157280791 and 157280800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157280801) 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, 305 + ... + 17738.

It is an arithmetic number, because the mean of its divisors is an integer number (20570160).

Almost surely, 2^157280831 is an apocalyptic number.

157280831 is a deficient number, since it is larger than the sum of its proper divisors (7280449).

157280831 is a wasteful number, since it uses less digits than its factorization.

157280831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18445.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 157280831 is about 12541.1654562086. The cubic root of 157280831 is about 539.7905349002.

The spelling of 157280831 in words is "one hundred fifty-seven million, two hundred eighty thousand, eight hundred thirty-one".