13202639 has 2 divisors, whose sum is σ = 13202640. Its totient is φ = 13202638.

The previous prime is 13202617. The next prime is 13202641. The reversal of 13202639 is 93620231.

It is a strong prime.

It is an emirp because it is prime and its reverse (93620231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13202639 - 2¹² = 13198543 is a prime.

It is a Sophie Germain prime.

Together with 13202641, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13202669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6601319 + 6601320.

It is an arithmetic number, because the mean of its divisors is an integer number (6601320).

Almost surely, 2^13202639 is an apocalyptic number.

13202639 is a deficient number, since it is larger than the sum of its proper divisors (1).

13202639 is an equidigital number, since it uses as much as digits as its factorization.

13202639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 13202639 is about 3633.5435871887. The cubic root of 13202639 is about 236.3488986194.

It can be divided in two parts, 1320 and 2639, that multiplied together give a triangular number (3483480 = T₂₆₃₉).

The spelling of 13202639 in words is "thirteen million, two hundred two thousand, six hundred thirty-nine".