13250087 has 4 divisors (see below), whose sum is σ = 13947480. Its totient is φ = 12552696.

The previous prime is 13250009. The next prime is 13250101. The reversal of 13250087 is 78005231.

13250087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78005231 = 17 ⋅4588543.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13250087 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 (13250387) 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, 348668 + ... + 348705.

It is an arithmetic number, because the mean of its divisors is an integer number (3486870).

Almost surely, 2^13250087 is an apocalyptic number.

13250087 is a deficient number, since it is larger than the sum of its proper divisors (697393).

13250087 is an equidigital number, since it uses as much as digits as its factorization.

13250087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697392.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 13250087 is about 3640.0668949897. The cubic root of 13250087 is about 236.6316924668.

The spelling of 13250087 in words is "thirteen million, two hundred fifty thousand, eighty-seven".