13231487 has 8 divisors (see below), whose sum is σ = 13829376. Its totient is φ = 12646872.

The previous prime is 13231481. The next prime is 13231523. The reversal of 13231487 is 78413231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13231487 - 2¹⁶ = 13165951 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 (13231481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1253 + ... + 5294.

It is an arithmetic number, because the mean of its divisors is an integer number (1728672).

Almost surely, 2^13231487 is an apocalyptic number.

13231487 is a deficient number, since it is larger than the sum of its proper divisors (597889).

13231487 is an equidigital number, since it uses as much as digits as its factorization.

13231487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6637.

The product of its digits is 4032, while the sum is 29.

The square root of 13231487 is about 3637.5110996394. The cubic root of 13231487 is about 236.5209155697.

The spelling of 13231487 in words is "thirteen million, two hundred thirty-one thousand, four hundred eighty-seven".