11513091 has 8 divisors (see below), whose sum is σ = 15503184. Its totient is φ = 7599200.

The previous prime is 11513077. The next prime is 11513141. The reversal of 11513091 is 19031511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11513091 - 2¹⁸ = 11250947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11513191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18696 + ... + 19301.

It is an arithmetic number, because the mean of its divisors is an integer number (1937898).

Almost surely, 2^11513091 is an apocalyptic number.

11513091 is a deficient number, since it is larger than the sum of its proper divisors (3990093).

11513091 is a wasteful number, since it uses less digits than its factorization.

11513091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38101.

The product of its (nonzero) digits is 135, while the sum is 21.

The square root of 11513091 is about 3393.0946052240. The cubic root of 11513091 is about 225.8034877779.

The spelling of 11513091 in words is "eleven million, five hundred thirteen thousand, ninety-one".