13265421 has 16 divisors (see below), whose sum is σ = 19455744. Its totient is φ = 7988544.

The previous prime is 13265419. The next prime is 13265431. The reversal of 13265421 is 12456231.

It is not a de Polignac number, because 13265421 - 2¹ = 13265419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13265391 and 13265400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13265431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1786 + ... + 5451.

It is an arithmetic number, because the mean of its divisors is an integer number (1215984).

Almost surely, 2^13265421 is an apocalyptic number.

It is an amenable number.

13265421 is a deficient number, since it is larger than the sum of its proper divisors (6190323).

13265421 is a wasteful number, since it uses less digits than its factorization.

13265421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7300.

The product of its digits is 1440, while the sum is 24.

The square root of 13265421 is about 3642.1725659282. The cubic root of 13265421 is about 236.7229399568.

The spelling of 13265421 in words is "thirteen million, two hundred sixty-five thousand, four hundred twenty-one".