2137117 has 2 divisors, whose sum is σ = 2137118. Its totient is φ = 2137116.

The previous prime is 2137073. The next prime is 2137123. The reversal of 2137117 is 7117312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1602756 + 534361 = 1266^2 + 731^2 .

It is a cyclic number.

It is not a de Polignac number, because 2137117 - 2⁷ = 2136989 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2137517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068558 + 1068559.

It is an arithmetic number, because the mean of its divisors is an integer number (1068559).

2^2137117 is an apocalyptic number.

It is an amenable number.

2137117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2137117 is an equidigital number, since it uses as much as digits as its factorization.

2137117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 294, while the sum is 22.

The square root of 2137117 is about 1461.8881626171. Note that the first 3 decimals coincide. The cubic root of 2137117 is about 128.8079790397.

The spelling of 2137117 in words is "two million, one hundred thirty-seven thousand, one hundred seventeen".