13331407 has 4 divisors (see below), whose sum is σ = 14033080. Its totient is φ = 12629736.

The previous prime is 13331309. The next prime is 13331411. The reversal of 13331407 is 70413331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70413331 = 37 ⋅1903063.

It is a cyclic number.

It is not a de Polignac number, because 13331407 - 2¹¹ = 13329359 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 (13331447) 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, 350808 + ... + 350845.

It is an arithmetic number, because the mean of its divisors is an integer number (3508270).

Almost surely, 2^13331407 is an apocalyptic number.

13331407 is a deficient number, since it is larger than the sum of its proper divisors (701673).

13331407 is an equidigital number, since it uses as much as digits as its factorization.

13331407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701672.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 13331407 is about 3651.2199331182. The cubic root of 13331407 is about 237.1148001458.

Adding to 13331407 its reverse (70413331), we get a palindrome (83744738).

The spelling of 13331407 in words is "thirteen million, three hundred thirty-one thousand, four hundred seven".