11513087 has 16 divisors (see below), whose sum is σ = 12761280. Its totient is φ = 10348800.

The previous prime is 11513077. The next prime is 11513141. The reversal of 11513087 is 78031511.

It is a cyclic number.

It is not a de Polignac number, because 11513087 - 2¹⁴ = 11496703 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 (11513017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27137 + ... + 27557.

It is an arithmetic number, because the mean of its divisors is an integer number (797580).

Almost surely, 2^11513087 is an apocalyptic number.

11513087 is a deficient number, since it is larger than the sum of its proper divisors (1248193).

11513087 is a wasteful number, since it uses less digits than its factorization.

11513087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514.

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

The square root of 11513087 is about 3393.0940157915. The cubic root of 11513087 is about 225.8034616275.

Adding to 11513087 its reverse (78031511), we get a palindrome (89544598).

The spelling of 11513087 in words is "eleven million, five hundred thirteen thousand, eighty-seven".