13431413 has 4 divisors (see below), whose sum is σ = 13477548. Its totient is φ = 13385280.

The previous prime is 13431403. The next prime is 13431421. The reversal of 13431413 is 31413431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11142244 + 2289169 = 3338^2 + 1513^2 .

It is a cyclic number.

It is not a de Polignac number, because 13431413 - 2⁶ = 13431349 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 (13431403) 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, 22628 + ... + 23213.

It is an arithmetic number, because the mean of its divisors is an integer number (3369387).

Almost surely, 2^13431413 is an apocalyptic number.

It is an amenable number.

13431413 is a deficient number, since it is larger than the sum of its proper divisors (46135).

13431413 is an equidigital number, since it uses as much as digits as its factorization.

13431413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46134.

The product of its digits is 432, while the sum is 20.

The square root of 13431413 is about 3664.8892206996. The cubic root of 13431413 is about 237.7062319480.

Adding to 13431413 its reverse (31413431), we get a palindrome (44844844).

The spelling of 13431413 in words is "thirteen million, four hundred thirty-one thousand, four hundred thirteen".