13151087 has 4 divisors (see below), whose sum is σ = 13161720. Its totient is φ = 13140456.

The previous prime is 13151063. The next prime is 13151107. The reversal of 13151087 is 78015131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 78015131 = 6203 ⋅12577.

It is a cyclic number.

It is not a de Polignac number, because 13151087 - 2¹⁸ = 12888943 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 (13151027) 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, 3173 + ... + 6030.

It is an arithmetic number, because the mean of its divisors is an integer number (3290430).

Almost surely, 2^13151087 is an apocalyptic number.

13151087 is a deficient number, since it is larger than the sum of its proper divisors (10633).

13151087 is an equidigital number, since it uses as much as digits as its factorization.

13151087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10632.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 13151087 is about 3626.4427473766. The cubic root of 13151087 is about 236.0408755685.

The spelling of 13151087 in words is "thirteen million, one hundred fifty-one thousand, eighty-seven".