490487131 has 2 divisors, whose sum is σ = 490487132. Its totient is φ = 490487130.

The previous prime is 490487113. The next prime is 490487143. The reversal of 490487131 is 131784094.

Together with previous prime (490487113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 490487131 - 2⁷ = 490487003 is a prime.

It is a super-2 number, since 2×490487131² = 481155251353222322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (490487171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245243565 + 245243566.

It is an arithmetic number, because the mean of its divisors is an integer number (245243566).

Almost surely, 2^490487131 is an apocalyptic number.

490487131 is a deficient number, since it is larger than the sum of its proper divisors (1).

490487131 is an equidigital number, since it uses as much as digits as its factorization.

490487131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 490487131 is about 22146.9440555576. The cubic root of 490487131 is about 788.6346822870.

The spelling of 490487131 in words is "four hundred ninety million, four hundred eighty-seven thousand, one hundred thirty-one".