2997666137 has 2 divisors, whose sum is σ = 2997666138. Its totient is φ = 2997666136.

The previous prime is 2997666121. The next prime is 2997666187. The reversal of 2997666137 is 7316667992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2406981721 + 590684416 = 49061^2 + 24304^2 .

It is a cyclic number.

It is not a de Polignac number, because 2997666137 - 2⁴ = 2997666121 is a prime.

It is not a weakly prime, because it can be changed into another prime (2997666187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1498833068 + 1498833069.

It is an arithmetic number, because the mean of its divisors is an integer number (1498833069).

Almost surely, 2^2997666137 is an apocalyptic number.

It is an amenable number.

2997666137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2997666137 is an equidigital number, since it uses as much as digits as its factorization.

2997666137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5143824, while the sum is 56.

The square root of 2997666137 is about 54750.9464484405. The cubic root of 2997666137 is about 1441.8754718458.

The spelling of 2997666137 in words is "two billion, nine hundred ninety-seven million, six hundred sixty-six thousand, one hundred thirty-seven".