13346431 has 16 divisors (see below), whose sum is σ = 15634944. Its totient is φ = 11157984.

The previous prime is 13346429. The next prime is 13346441. The reversal of 13346431 is 13464331.

It is a happy number.

13346431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13346431 - 2¹ = 13346429 is a prime.

It is a super-2 number, since 2×13346431² = 356254440875522, 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 = 13346396 and 13346405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13346441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77061 + ... + 77233.

It is an arithmetic number, because the mean of its divisors is an integer number (977184).

Almost surely, 2^13346431 is an apocalyptic number.

13346431 is a deficient number, since it is larger than the sum of its proper divisors (2288513).

13346431 is a wasteful number, since it uses less digits than its factorization.

13346431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390.

The product of its digits is 2592, while the sum is 25.

The square root of 13346431 is about 3653.2767483452. The cubic root of 13346431 is about 237.2038398938.

It can be divided in two parts, 133 and 46431, that added together give a palindrome (46564).

The spelling of 13346431 in words is "thirteen million, three hundred forty-six thousand, four hundred thirty-one".