13354421 has 4 divisors (see below), whose sum is σ = 13935072. Its totient is φ = 12773772.

The previous prime is 13354417. The next prime is 13354457. The reversal of 13354421 is 12445331.

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.

It is a cyclic number.

It is not a de Polignac number, because 13354421 - 2² = 13354417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 580627 = 13354421 / (1 + 3 + 3 + 5 + 4 + 4 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13354921) 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, 290291 + ... + 290336.

It is an arithmetic number, because the mean of its divisors is an integer number (3483768).

Almost surely, 2^13354421 is an apocalyptic number.

It is an amenable number.

13354421 is a deficient number, since it is larger than the sum of its proper divisors (580651).

13354421 is an equidigital number, since it uses as much as digits as its factorization.

13354421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580650.

The product of its digits is 1440, while the sum is 23.

The square root of 13354421 is about 3654.3701235644. The cubic root of 13354421 is about 237.2511654197.

Adding to 13354421 its reverse (12445331), we get a palindrome (25799752).

The spelling of 13354421 in words is "thirteen million, three hundred fifty-four thousand, four hundred twenty-one".