13259421 has 12 divisors (see below), whose sum is σ = 21888672. Its totient is φ = 7576776.

The previous prime is 13259417. The next prime is 13259423. The reversal of 13259421 is 12495231.

13259421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13259421 - 2² = 13259417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13259423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105171 + ... + 105296.

It is an arithmetic number, because the mean of its divisors is an integer number (1824056).

Almost surely, 2^13259421 is an apocalyptic number.

It is an amenable number.

13259421 is a deficient number, since it is larger than the sum of its proper divisors (8629251).

13259421 is a wasteful number, since it uses less digits than its factorization.

13259421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210480 (or 210477 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 13259421 is about 3641.3487885672. The cubic root of 13259421 is about 236.6872443480.

The spelling of 13259421 in words is "thirteen million, two hundred fifty-nine thousand, four hundred twenty-one".