13421039 has 2 divisors, whose sum is σ = 13421040. Its totient is φ = 13421038.

The previous prime is 13421021. The next prime is 13421071. The reversal of 13421039 is 93012431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13421039 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 (13421539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6710519 + 6710520.

It is an arithmetic number, because the mean of its divisors is an integer number (6710520).

Almost surely, 2^13421039 is an apocalyptic number.

13421039 is a deficient number, since it is larger than the sum of its proper divisors (1).

13421039 is an equidigital number, since it uses as much as digits as its factorization.

13421039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 13421039 is about 3663.4736248539. The cubic root of 13421039 is about 237.6450172518.

The spelling of 13421039 in words is "thirteen million, four hundred twenty-one thousand, thirty-nine".