158160831 has 4 divisors (see below), whose sum is σ = 210881112. Its totient is φ = 105440552.

The previous prime is 158160823. The next prime is 158160839. The reversal of 158160831 is 138061851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138061851 = 3 ⋅46020617.

It is an interprime number because it is at equal distance from previous prime (158160823) and next prime (158160839).

It is a cyclic number.

It is not a de Polignac number, because 158160831 - 2³ = 158160823 is a prime.

It is a super-2 number, since 2×158160831² = 50029696925221122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 158160792 and 158160801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158160839) 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 3 ways as a sum of consecutive naturals, for example, 26360136 + ... + 26360141.

It is an arithmetic number, because the mean of its divisors is an integer number (52720278).

Almost surely, 2^158160831 is an apocalyptic number.

158160831 is a deficient number, since it is larger than the sum of its proper divisors (52720281).

158160831 is an equidigital number, since it uses as much as digits as its factorization.

158160831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52720280.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 158160831 is about 12576.2009764475. The cubic root of 158160831 is about 540.7953882214.

The spelling of 158160831 in words is "one hundred fifty-eight million, one hundred sixty thousand, eight hundred thirty-one".