496809139 has 4 divisors (see below), whose sum is σ = 526033224. Its totient is φ = 467585056.

The previous prime is 496809119. The next prime is 496809149. The reversal of 496809139 is 931908694.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 496809139 - 2⁷ = 496809011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 496809092 and 496809101.

It is not an unprimeable number, because it can be changed into a prime (496809109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14612017 + ... + 14612050.

It is an arithmetic number, because the mean of its divisors is an integer number (131508306).

Almost surely, 2^496809139 is an apocalyptic number.

496809139 is a deficient number, since it is larger than the sum of its proper divisors (29224085).

496809139 is a wasteful number, since it uses less digits than its factorization.

496809139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29224084.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 496809139 is about 22289.2157556070. The cubic root of 496809139 is about 792.0085295437.

The spelling of 496809139 in words is "four hundred ninety-six million, eight hundred nine thousand, one hundred thirty-nine".