13455331 has 2 divisors, whose sum is σ = 13455332. Its totient is φ = 13455330.

The previous prime is 13455329. The next prime is 13455341. The reversal of 13455331 is 13355431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13455331 - 2¹ = 13455329 is a prime.

It is a super-2 number, since 2×13455331² = 362091864639122, which contains 22 as substring.

Together with 13455329, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 13455296 and 13455305.

It is not a weakly prime, because it can be changed into another prime (13455311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6727665 + 6727666.

It is an arithmetic number, because the mean of its divisors is an integer number (6727666).

Almost surely, 2^13455331 is an apocalyptic number.

13455331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13455331 is an equidigital number, since it uses as much as digits as its factorization.

13455331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 25.

The square root of 13455331 is about 3668.1508965690. The cubic root of 13455331 is about 237.8472468012.

The spelling of 13455331 in words is "thirteen million, four hundred fifty-five thousand, three hundred thirty-one".