490136873 has 2 divisors, whose sum is σ = 490136874. Its totient is φ = 490136872.

The previous prime is 490136869. The next prime is 490136903. The reversal of 490136873 is 378631094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 458473744 + 31663129 = 21412^2 + 5627^2 .

It is a cyclic number.

It is not a de Polignac number, because 490136873 - 2² = 490136869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 490136873.

It is not a weakly prime, because it can be changed into another prime (490136813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245068436 + 245068437.

It is an arithmetic number, because the mean of its divisors is an integer number (245068437).

Almost surely, 2^490136873 is an apocalyptic number.

It is an amenable number.

490136873 is a deficient number, since it is larger than the sum of its proper divisors (1).

490136873 is an equidigital number, since it uses as much as digits as its factorization.

490136873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 490136873 is about 22139.0350512392. The cubic root of 490136873 is about 788.4469156320.

The spelling of 490136873 in words is "four hundred ninety million, one hundred thirty-six thousand, eight hundred seventy-three".