13453331 has 4 divisors (see below), whose sum is σ = 13477464. Its totient is φ = 13429200.

The previous prime is 13453313. The next prime is 13453337. The reversal of 13453331 is 13335431.

It is a happy number.

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 13453331 - 2⁶ = 13453267 is a prime.

It is a super-2 number, since 2×13453331² = 361984229991122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13453297 and 13453306.

It is not an unprimeable number, because it can be changed into a prime (13453337) 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, 11210 + ... + 12351.

It is an arithmetic number, because the mean of its divisors is an integer number (3369366).

Almost surely, 2^13453331 is an apocalyptic number.

13453331 is a deficient number, since it is larger than the sum of its proper divisors (24133).

13453331 is an equidigital number, since it uses as much as digits as its factorization.

13453331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24132.

The product of its digits is 1620, while the sum is 23.

The square root of 13453331 is about 3667.8782695177. The cubic root of 13453331 is about 237.8354616813.

Adding to 13453331 its reverse (13335431), we get a palindrome (26788762).

The spelling of 13453331 in words is "thirteen million, four hundred fifty-three thousand, three hundred thirty-one".