2166137 has 2 divisors, whose sum is σ = 2166138. Its totient is φ = 2166136.

The previous prime is 2166127. The next prime is 2166161. The reversal of 2166137 is 7316612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1731856 + 434281 = 1316^2 + 659^2 .

It is a cyclic number.

It is not a de Polignac number, because 2166137 - 2⁴ = 2166121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2166127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1083068 + 1083069.

It is an arithmetic number, because the mean of its divisors is an integer number (1083069).

2^2166137 is an apocalyptic number.

It is an amenable number.

2166137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2166137 is an equidigital number, since it uses as much as digits as its factorization.

2166137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 26.

The square root of 2166137 is about 1471.7802145701. The cubic root of 2166137 is about 129.3883893974.

The spelling of 2166137 in words is "two million, one hundred sixty-six thousand, one hundred thirty-seven".