13590431 has 4 divisors (see below), whose sum is σ = 14028864. Its totient is φ = 13152000.

The previous prime is 13590427. The next prime is 13590443. The reversal of 13590431 is 13409531.

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 13590431 - 2² = 13590427 is a prime.

It is a super-2 number, since 2×13590431² = 369399629531522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13590431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13590131) 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, 219170 + ... + 219231.

It is an arithmetic number, because the mean of its divisors is an integer number (3507216).

Almost surely, 2^13590431 is an apocalyptic number.

13590431 is a deficient number, since it is larger than the sum of its proper divisors (438433).

13590431 is an equidigital number, since it uses as much as digits as its factorization.

13590431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438432.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 13590431 is about 3686.5201749075. The cubic root of 13590431 is about 238.6406426982.

Adding to 13590431 its reverse (13409531), we get a palindrome (26999962).

The spelling of 13590431 in words is "thirteen million, five hundred ninety thousand, four hundred thirty-one".