499981500131 has 2 divisors, whose sum is σ = 499981500132. Its totient is φ = 499981500130.

The previous prime is 499981500127. The next prime is 499981500149. The reversal of 499981500131 is 131005189994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 499981500131 - 2² = 499981500127 is a prime.

It is a super-2 number, since 2×499981500131² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 499981500131.

It is not a weakly prime, because it can be changed into another prime (499981500101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249990750065 + 249990750066.

It is an arithmetic number, because the mean of its divisors is an integer number (249990750066).

Almost surely, 2^499981500131 is an apocalyptic number.

499981500131 is a deficient number, since it is larger than the sum of its proper divisors (1).

499981500131 is an equidigital number, since it uses as much as digits as its factorization.

499981500131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 50.

The spelling of 499981500131 in words is "four hundred ninety-nine billion, nine hundred eighty-one million, five hundred thousand, one hundred thirty-one".