2140637 has 2 divisors, whose sum is σ = 2140638. Its totient is φ = 2140636.

The previous prime is 2140631. The next prime is 2140681. The reversal of 2140637 is 7360412.

2140637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2042041 + 98596 = 1429^2 + 314^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140637 - 2⁶ = 2140573 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2140631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070318 + 1070319.

It is an arithmetic number, because the mean of its divisors is an integer number (1070319).

2^2140637 is an apocalyptic number.

It is an amenable number.

2140637 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140637 is an equidigital number, since it uses as much as digits as its factorization.

2140637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 2140637 is about 1463.0915897510. The cubic root of 2140637 is about 128.8786592104.

The spelling of 2140637 in words is "two million, one hundred forty thousand, six hundred thirty-seven".