2902315561 has 2 divisors, whose sum is σ = 2902315562. Its totient is φ = 2902315560.

The previous prime is 2902315553. The next prime is 2902315589. The reversal of 2902315561 is 1655132092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2361474025 + 540841536 = 48595^2 + 23256^2 .

It is a cyclic number.

It is not a de Polignac number, because 2902315561 - 2³ = 2902315553 is a prime.

It is not a weakly prime, because it can be changed into another prime (2902315501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1451157780 + 1451157781.

It is an arithmetic number, because the mean of its divisors is an integer number (1451157781).

Almost surely, 2^2902315561 is an apocalyptic number.

It is an amenable number.

2902315561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2902315561 is an equidigital number, since it uses as much as digits as its factorization.

2902315561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 2902315561 is about 53873.1432255442. The cubic root of 2902315561 is about 1426.4225967301.

The spelling of 2902315561 in words is "two billion, nine hundred two million, three hundred fifteen thousand, five hundred sixty-one".