495916139 has 2 divisors, whose sum is σ = 495916140. Its totient is φ = 495916138.

The previous prime is 495916117. The next prime is 495916171. The reversal of 495916139 is 931619594.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 495916139 - 2¹⁶ = 495850603 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 495916093 and 495916102.

It is not a weakly prime, because it can be changed into another prime (495916039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247958069 + 247958070.

It is an arithmetic number, because the mean of its divisors is an integer number (247958070).

Almost surely, 2^495916139 is an apocalyptic number.

495916139 is a deficient number, since it is larger than the sum of its proper divisors (1).

495916139 is an equidigital number, since it uses as much as digits as its factorization.

495916139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 262440, while the sum is 47.

The square root of 495916139 is about 22269.1746367035. The cubic root of 495916139 is about 791.5337074931.

The spelling of 495916139 in words is "four hundred ninety-five million, nine hundred sixteen thousand, one hundred thirty-nine".