2137697 has 2 divisors, whose sum is σ = 2137698. Its totient is φ = 2137696.

The previous prime is 2137687. The next prime is 2137717. The reversal of 2137697 is 7967312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1430416 + 707281 = 1196^2 + 841^2 .

It is a cyclic number.

It is not a de Polignac number, because 2137697 - 2⁸ = 2137441 is a prime.

It is not a weakly prime, because it can be changed into another prime (2137627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068848 + 1068849.

It is an arithmetic number, because the mean of its divisors is an integer number (1068849).

2^2137697 is an apocalyptic number.

It is an amenable number.

2137697 is a deficient number, since it is larger than the sum of its proper divisors (1).

2137697 is an equidigital number, since it uses as much as digits as its factorization.

2137697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 35.

The square root of 2137697 is about 1462.0865227475. The cubic root of 2137697 is about 128.8196305419.

The spelling of 2137697 in words is "two million, one hundred thirty-seven thousand, six hundred ninety-seven".