2136997 has 2 divisors, whose sum is σ = 2136998. Its totient is φ = 2136996.

The previous prime is 2136991. The next prime is 2137021. The reversal of 2136997 is 7996312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2076481 + 60516 = 1441^2 + 246^2 .

It is a cyclic number.

It is not a de Polignac number, because 2136997 - 2³ = 2136989 is a prime.

It is an Ulam number.

2136997 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2136991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068498 + 1068499.

It is an arithmetic number, because the mean of its divisors is an integer number (1068499).

2^2136997 is an apocalyptic number.

It is an amenable number.

2136997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2136997 is an equidigital number, since it uses as much as digits as its factorization.

2136997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 37.

The square root of 2136997 is about 1461.8471192296. The cubic root of 2136997 is about 128.8055681208.

The spelling of 2136997 in words is "two million, one hundred thirty-six thousand, nine hundred ninety-seven".