236138923 has 2 divisors, whose sum is σ = 236138924. Its totient is φ = 236138922.

The previous prime is 236138911. The next prime is 236138939. The reversal of 236138923 is 329831632.

236138923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 236138923 - 2¹⁷ = 236007851 is a prime.

It is not a weakly prime, because it can be changed into another prime (236138963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118069461 + 118069462.

It is an arithmetic number, because the mean of its divisors is an integer number (118069462).

Almost surely, 2^236138923 is an apocalyptic number.

236138923 is a deficient number, since it is larger than the sum of its proper divisors (1).

236138923 is an equidigital number, since it uses as much as digits as its factorization.

236138923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The square root of 236138923 is about 15366.8123890415. The cubic root of 236138923 is about 618.0958951257.

The spelling of 236138923 in words is "two hundred thirty-six million, one hundred thirty-eight thousand, nine hundred twenty-three".