158836052531 has 6 divisors (see below), whose sum is σ = 171994068900. Its totient is φ = 146617894488.

The previous prime is 158836052509. The next prime is 158836052537. The reversal of 158836052531 is 135250638851.

It is a happy number.

It is not a de Polignac number, because 158836052531 - 2¹⁴ = 158836036147 is a prime.

It is a super-2 number, since 2×158836052531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158836052537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 469928981 + ... + 469929318.

It is an arithmetic number, because the mean of its divisors is an integer number (28665678150).

Almost surely, 2^158836052531 is an apocalyptic number.

158836052531 is a deficient number, since it is larger than the sum of its proper divisors (13158016369).

158836052531 is an equidigital number, since it uses as much as digits as its factorization.

158836052531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939858325 (or 939858312 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 158836052531 in words is "one hundred fifty-eight billion, eight hundred thirty-six million, fifty-two thousand, five hundred thirty-one".