158953939 has 4 divisors (see below), whose sum is σ = 159387424. Its totient is φ = 158520456.

The previous prime is 158953933. The next prime is 158953973. The reversal of 158953939 is 939359851.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 158953939 - 2¹⁵ = 158921171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158953933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216192 + ... + 216925.

It is an arithmetic number, because the mean of its divisors is an integer number (39846856).

Almost surely, 2^158953939 is an apocalyptic number.

158953939 is a deficient number, since it is larger than the sum of its proper divisors (433485).

158953939 is an equidigital number, since it uses as much as digits as its factorization.

158953939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433484.

The product of its digits is 1312200, while the sum is 52.

The square root of 158953939 is about 12607.6936431688. The cubic root of 158953939 is about 541.6978329155.

The spelling of 158953939 in words is "one hundred fifty-eight million, nine hundred fifty-three thousand, nine hundred thirty-nine".