290974513 has 2 divisors, whose sum is σ = 290974514. Its totient is φ = 290974512.

The previous prime is 290974471. The next prime is 290974517. The reversal of 290974513 is 315479092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 285880464 + 5094049 = 16908^2 + 2257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-290974513 is a prime.

It is not a weakly prime, because it can be changed into another prime (290974517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145487256 + 145487257.

It is an arithmetic number, because the mean of its divisors is an integer number (145487257).

Almost surely, 2^290974513 is an apocalyptic number.

It is an amenable number.

290974513 is a deficient number, since it is larger than the sum of its proper divisors (1).

290974513 is an equidigital number, since it uses as much as digits as its factorization.

290974513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 290974513 is about 17057.9750556741. The cubic root of 290974513 is about 662.6511916948.

The spelling of 290974513 in words is "two hundred ninety million, nine hundred seventy-four thousand, five hundred thirteen".