102006637 has 2 divisors, whose sum is σ = 102006638. Its totient is φ = 102006636.

The previous prime is 102006607. The next prime is 102006661. The reversal of 102006637 is 736600201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100520676 + 1485961 = 10026^2 + 1219^2 .

It is a cyclic number.

It is not a de Polignac number, because 102006637 - 2¹¹ = 102004589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102006607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51003318 + 51003319.

It is an arithmetic number, because the mean of its divisors is an integer number (51003319).

Almost surely, 2^102006637 is an apocalyptic number.

It is an amenable number.

102006637 is a deficient number, since it is larger than the sum of its proper divisors (1).

102006637 is an equidigital number, since it uses as much as digits as its factorization.

102006637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 102006637 is about 10099.8335134793. The cubic root of 102006637 is about 467.2430066830.

Adding to 102006637 its reverse (736600201), we get a palindrome (838606838).

The spelling of 102006637 in words is "one hundred two million, six thousand, six hundred thirty-seven".