158944957 has 8 divisors (see below), whose sum is σ = 160289784. Its totient is φ = 157605888.

The previous prime is 158944949. The next prime is 158944993. The reversal of 158944957 is 759449851.

It can be written as a sum of positive squares in 4 ways, for example, as 2669956 + 156275001 = 1634^2 + 12501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158944957 - 2³ = 158944949 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 (158944757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66963 + ... + 69295.

It is an arithmetic number, because the mean of its divisors is an integer number (20036223).

Almost surely, 2^158944957 is an apocalyptic number.

It is an amenable number.

158944957 is a deficient number, since it is larger than the sum of its proper divisors (1344827).

158944957 is a wasteful number, since it uses less digits than its factorization.

158944957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879.

The product of its digits is 1814400, while the sum is 52.

The square root of 158944957 is about 12607.3374270700. The cubic root of 158944957 is about 541.6876294951.

The spelling of 158944957 in words is "one hundred fifty-eight million, nine hundred forty-four thousand, nine hundred fifty-seven".