10102639 has 2 divisors, whose sum is σ = 10102640. Its totient is φ = 10102638.

The previous prime is 10102613. The next prime is 10102663. The reversal of 10102639 is 93620101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10102639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10102679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051319 + 5051320.

It is an arithmetic number, because the mean of its divisors is an integer number (5051320).

Almost surely, 2^10102639 is an apocalyptic number.

10102639 is a deficient number, since it is larger than the sum of its proper divisors (1).

10102639 is an equidigital number, since it uses as much as digits as its factorization.

10102639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 10102639 is about 3178.4648810393. The cubic root of 10102639 is about 216.1780581968.

The spelling of 10102639 in words is "ten million, one hundred two thousand, six hundred thirty-nine".