158380331 has 2 divisors, whose sum is σ = 158380332. Its totient is φ = 158380330.

The previous prime is 158380307. The next prime is 158380337. The reversal of 158380331 is 133083851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158380331 - 2¹⁸ = 158118187 is a prime.

It is a super-2 number, since 2×158380331² = 50168658495339122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (158380337) 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 as a sum of consecutive naturals, namely, 79190165 + 79190166.

It is an arithmetic number, because the mean of its divisors is an integer number (79190166).

Almost surely, 2^158380331 is an apocalyptic number.

158380331 is a deficient number, since it is larger than the sum of its proper divisors (1).

158380331 is an equidigital number, since it uses as much as digits as its factorization.

158380331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 158380331 is about 12584.9247514636. The cubic root of 158380331 is about 541.0454495365.

The spelling of 158380331 in words is "one hundred fifty-eight million, three hundred eighty thousand, three hundred thirty-one".