13359421 has 4 divisors (see below), whose sum is σ = 13643712. Its totient is φ = 13075132.

The previous prime is 13359407. The next prime is 13359439. The reversal of 13359421 is 12495331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12495331 = 19 ⋅657649.

It is a cyclic number.

It is not a de Polignac number, because 13359421 - 2¹³ = 13351229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13359421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13359461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142075 + ... + 142168.

It is an arithmetic number, because the mean of its divisors is an integer number (3410928).

Almost surely, 2^13359421 is an apocalyptic number.

It is an amenable number.

13359421 is a deficient number, since it is larger than the sum of its proper divisors (284291).

13359421 is an equidigital number, since it uses as much as digits as its factorization.

13359421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284290.

The product of its digits is 3240, while the sum is 28.

The square root of 13359421 is about 3655.0541719652. The cubic root of 13359421 is about 237.2807712911.

The spelling of 13359421 in words is "thirteen million, three hundred fifty-nine thousand, four hundred twenty-one".