490613131 has 2 divisors, whose sum is σ = 490613132. Its totient is φ = 490613130.

The previous prime is 490613129. The next prime is 490613153. The reversal of 490613131 is 131316094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490613131 - 2¹ = 490613129 is a prime.

It is a super-2 number, since 2×490613131² = 481402488619246322, which contains 22 as substring.

Together with 490613129, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 490613131.

It is not a weakly prime, because it can be changed into another prime (490013131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245306565 + 245306566.

It is an arithmetic number, because the mean of its divisors is an integer number (245306566).

Almost surely, 2^490613131 is an apocalyptic number.

490613131 is a deficient number, since it is larger than the sum of its proper divisors (1).

490613131 is an equidigital number, since it uses as much as digits as its factorization.

490613131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 490613131 is about 22149.7885091483. The cubic root of 490613131 is about 788.7022066290.

The spelling of 490613131 in words is "four hundred ninety million, six hundred thirteen thousand, one hundred thirty-one".