158280831 has 8 divisors (see below), whose sum is σ = 234490160. Its totient is φ = 105520536.

The previous prime is 158280809. The next prime is 158280833. The reversal of 158280831 is 138082851.

It is not a de Polignac number, because 158280831 - 2¹⁵ = 158248063 is a prime.

It is a super-2 number, since 2×158280831² = 50105642924101122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158280833) 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, 2931100 + ... + 2931153.

It is an arithmetic number, because the mean of its divisors is an integer number (29311270).

Almost surely, 2^158280831 is an apocalyptic number.

158280831 is a deficient number, since it is larger than the sum of its proper divisors (76209329).

158280831 is an equidigital number, since it uses as much as digits as its factorization.

158280831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5862262 (or 5862256 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 158280831 is about 12580.9709879643. The cubic root of 158280831 is about 540.9321246488.

The spelling of 158280831 in words is "one hundred fifty-eight million, two hundred eighty thousand, eight hundred thirty-one".