158943457 has 4 divisors (see below), whose sum is σ = 159065280. Its totient is φ = 158821636.

The previous prime is 158943451. The next prime is 158943509. The reversal of 158943457 is 754349851.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 158943457 - 2⁷ = 158943329 is a prime.

It is a super-2 number, since 2×158943457² = 50526045046221698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158943451) 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 in 3 ways as a sum of consecutive naturals, for example, 58933 + ... + 61570.

It is an arithmetic number, because the mean of its divisors is an integer number (39766320).

Almost surely, 2^158943457 is an apocalyptic number.

It is an amenable number.

158943457 is a deficient number, since it is larger than the sum of its proper divisors (121823).

158943457 is a wasteful number, since it uses less digits than its factorization.

158943457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121822.

The product of its digits is 604800, while the sum is 46.

The square root of 158943457 is about 12607.2779377628. The cubic root of 158943457 is about 541.6859254796.

The spelling of 158943457 in words is "one hundred fifty-eight million, nine hundred forty-three thousand, four hundred fifty-seven".