290902057 has 2 divisors, whose sum is σ = 290902058. Its totient is φ = 290902056.

The previous prime is 290902049. The next prime is 290902061. The reversal of 290902057 is 750209092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286997481 + 3904576 = 16941^2 + 1976^2 .

It is a cyclic number.

It is not a de Polignac number, because 290902057 - 2³ = 290902049 is a prime.

It is not a weakly prime, because it can be changed into another prime (290902457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145451028 + 145451029.

It is an arithmetic number, because the mean of its divisors is an integer number (145451029).

Almost surely, 2^290902057 is an apocalyptic number.

It is an amenable number.

290902057 is a deficient number, since it is larger than the sum of its proper divisors (1).

290902057 is an equidigital number, since it uses as much as digits as its factorization.

290902057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 290902057 is about 17055.8511074646. The cubic root of 290902057 is about 662.5961845397.

The spelling of 290902057 in words is "two hundred ninety million, nine hundred two thousand, fifty-seven".