102091637 has 2 divisors, whose sum is σ = 102091638. Its totient is φ = 102091636.

The previous prime is 102091631. The next prime is 102091651. The reversal of 102091637 is 736190201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88943761 + 13147876 = 9431^2 + 3626^2 .

It is a cyclic number.

It is not a de Polignac number, because 102091637 - 2⁶ = 102091573 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 (102091631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51045818 + 51045819.

It is an arithmetic number, because the mean of its divisors is an integer number (51045819).

Almost surely, 2^102091637 is an apocalyptic number.

It is an amenable number.

102091637 is a deficient number, since it is larger than the sum of its proper divisors (1).

102091637 is an equidigital number, since it uses as much as digits as its factorization.

102091637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 102091637 is about 10104.0406273926. The cubic root of 102091637 is about 467.3727519310.

The spelling of 102091637 in words is "one hundred two million, ninety-one thousand, six hundred thirty-seven".