126310139 has 2 divisors, whose sum is σ = 126310140. Its totient is φ = 126310138.

The previous prime is 126310133. The next prime is 126310159. The reversal of 126310139 is 931013621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126310139 - 2⁴ = 126310123 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126310133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63155069 + 63155070.

It is an arithmetic number, because the mean of its divisors is an integer number (63155070).

Almost surely, 2^126310139 is an apocalyptic number.

126310139 is a deficient number, since it is larger than the sum of its proper divisors (1).

126310139 is an equidigital number, since it uses as much as digits as its factorization.

126310139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 126310139 is about 11238.7783588787. The cubic root of 126310139 is about 501.7407843065.

The spelling of 126310139 in words is "one hundred twenty-six million, three hundred ten thousand, one hundred thirty-nine".