13421351 has 4 divisors (see below), whose sum is σ = 14004912. Its totient is φ = 12837792.

The previous prime is 13421329. The next prime is 13421363. The reversal of 13421351 is 15312431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13421351 - 2¹⁴ = 13404967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291746 + ... + 291791.

It is an arithmetic number, because the mean of its divisors is an integer number (3501228).

Almost surely, 2^13421351 is an apocalyptic number.

13421351 is a deficient number, since it is larger than the sum of its proper divisors (583561).

13421351 is an equidigital number, since it uses as much as digits as its factorization.

13421351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583560.

The product of its digits is 360, while the sum is 20.

The square root of 13421351 is about 3663.5162071431. The cubic root of 13421351 is about 237.6468587553.

Adding to 13421351 its reverse (15312431), we get a palindrome (28733782).

The spelling of 13421351 in words is "thirteen million, four hundred twenty-one thousand, three hundred fifty-one".