495604139 has 2 divisors, whose sum is σ = 495604140. Its totient is φ = 495604138.

The previous prime is 495604133. The next prime is 495604141. The reversal of 495604139 is 931406594.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 495604139 - 2¹² = 495600043 is a prime.

Together with 495604141, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 495604096 and 495604105.

It is not a weakly prime, because it can be changed into another prime (495604133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247802069 + 247802070.

It is an arithmetic number, because the mean of its divisors is an integer number (247802070).

Almost surely, 2^495604139 is an apocalyptic number.

495604139 is a deficient number, since it is larger than the sum of its proper divisors (1).

495604139 is an equidigital number, since it uses as much as digits as its factorization.

495604139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 495604139 is about 22262.1683355418. The cubic root of 495604139 is about 791.3676778590.

The spelling of 495604139 in words is "four hundred ninety-five million, six hundred four thousand, one hundred thirty-nine".