236230139 has 2 divisors, whose sum is σ = 236230140. Its totient is φ = 236230138.

The previous prime is 236230129. The next prime is 236230153. The reversal of 236230139 is 931032632.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 236230139 - 2⁸ = 236229883 is a prime.

It is not a weakly prime, because it can be changed into another prime (236230109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118115069 + 118115070.

It is an arithmetic number, because the mean of its divisors is an integer number (118115070).

Almost surely, 2^236230139 is an apocalyptic number.

236230139 is a deficient number, since it is larger than the sum of its proper divisors (1).

236230139 is an equidigital number, since it uses as much as digits as its factorization.

236230139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 236230139 is about 15369.7800569819. The cubic root of 236230139 is about 618.1754711319.

The spelling of 236230139 in words is "two hundred thirty-six million, two hundred thirty thousand, one hundred thirty-nine".