253762139 has 2 divisors, whose sum is σ = 253762140. Its totient is φ = 253762138.

The previous prime is 253762123. The next prime is 253762147. The reversal of 253762139 is 931267352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253762139 - 2⁴ = 253762123 is a prime.

It is not a weakly prime, because it can be changed into another prime (253762199) 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 as a sum of consecutive naturals, namely, 126881069 + 126881070.

It is an arithmetic number, because the mean of its divisors is an integer number (126881070).

Almost surely, 2^253762139 is an apocalyptic number.

253762139 is a deficient number, since it is larger than the sum of its proper divisors (1).

253762139 is an equidigital number, since it uses as much as digits as its factorization.

253762139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 38.

The square root of 253762139 is about 15929.9133393751. The cubic root of 253762139 is about 633.1048037593.

The spelling of 253762139 in words is "two hundred fifty-three million, seven hundred sixty-two thousand, one hundred thirty-nine".