158238423 has 12 divisors (see below), whose sum is σ = 261219088. Its totient is φ = 90421920.

The previous prime is 158238407. The next prime is 158238433. The reversal of 158238423 is 324832851.

158238423 is a `hidden beast` number, since 1 + 582 + 38 + 42 + 3 = 666.

It is not a de Polignac number, because 158238423 - 2⁴ = 158238407 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 (158238433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1255798 + ... + 1255923.

Almost surely, 2^158238423 is an apocalyptic number.

158238423 is a deficient number, since it is larger than the sum of its proper divisors (102980665).

158238423 is a wasteful number, since it uses less digits than its factorization.

158238423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511734 (or 2511731 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 158238423 is about 12579.2854725537. The cubic root of 158238423 is about 540.8838098941.

The spelling of 158238423 in words is "one hundred fifty-eight million, two hundred thirty-eight thousand, four hundred twenty-three".