11539087 has 4 divisors (see below), whose sum is σ = 13187536. Its totient is φ = 9890640.

The previous prime is 11539069. The next prime is 11539127. The reversal of 11539087 is 78093511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78093511 = 5051 ⋅15461.

It is a cyclic number.

It is not a de Polignac number, because 11539087 - 2⁷ = 11538959 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 (11539027) 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, 824214 + ... + 824227.

It is an arithmetic number, because the mean of its divisors is an integer number (3296884).

Almost surely, 2^11539087 is an apocalyptic number.

11539087 is a deficient number, since it is larger than the sum of its proper divisors (1648449).

11539087 is an equidigital number, since it uses as much as digits as its factorization.

11539087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648448.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 11539087 is about 3396.9231666318. The cubic root of 11539087 is about 225.9733111251.

The spelling of 11539087 in words is "eleven million, five hundred thirty-nine thousand, eighty-seven".