13245687 has 48 divisors (see below), whose sum is σ = 24460800. Its totient is φ = 6975072.

The previous prime is 13245647. The next prime is 13245691. The reversal of 13245687 is 78654231.

It is not a de Polignac number, because 13245687 - 2⁶ = 13245623 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13245607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21814 + ... + 22412.

It is an arithmetic number, because the mean of its divisors is an integer number (509600).

Almost surely, 2^13245687 is an apocalyptic number.

13245687 is a deficient number, since it is larger than the sum of its proper divisors (11215113).

13245687 is an equidigital number, since it uses as much as digits as its factorization.

13245687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 622 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 13245687 is about 3639.4624603092. The cubic root of 13245687 is about 236.6054965453.

The spelling of 13245687 in words is "thirteen million, two hundred forty-five thousand, six hundred eighty-seven".