158138757 has 16 divisors (see below), whose sum is σ = 267748480. Its totient is φ = 90364896.

The previous prime is 158138753. The next prime is 158138759. The reversal of 158138757 is 757831851.

It is not a de Polignac number, because 158138757 - 2² = 158138753 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 (158138753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418168 + ... + 418545.

It is an arithmetic number, because the mean of its divisors is an integer number (16734280).

Almost surely, 2^158138757 is an apocalyptic number.

It is an amenable number.

158138757 is a deficient number, since it is larger than the sum of its proper divisors (109609723).

158138757 is an equidigital number, since it uses as much as digits as its factorization.

158138757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836729 (or 836723 counting only the distinct ones).

The product of its digits is 235200, while the sum is 45.

The square root of 158138757 is about 12575.3233358033. The cubic root of 158138757 is about 540.7702280248.

The spelling of 158138757 in words is "one hundred fifty-eight million, one hundred thirty-eight thousand, seven hundred fifty-seven".