290902061 has 2 divisors, whose sum is σ = 290902062. Its totient is φ = 290902060.

The previous prime is 290902057. The next prime is 290902069. The reversal of 290902061 is 160209092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206813161 + 84088900 = 14381^2 + 9170^2 .

It is a cyclic number.

It is not a de Polignac number, because 290902061 - 2² = 290902057 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (290902069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145451030 + 145451031.

It is an arithmetic number, because the mean of its divisors is an integer number (145451031).

Almost surely, 2^290902061 is an apocalyptic number.

It is an amenable number.

290902061 is a deficient number, since it is larger than the sum of its proper divisors (1).

290902061 is an equidigital number, since it uses as much as digits as its factorization.

290902061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 290902061 is about 17055.8512247264. The cubic root of 290902061 is about 662.5961875766.

The spelling of 290902061 in words is "two hundred ninety million, nine hundred two thousand, sixty-one".