11313591 has 8 divisors (see below), whose sum is σ = 15254640. Its totient is φ = 7457472.

The previous prime is 11313587. The next prime is 11313593. The reversal of 11313591 is 19531311.

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

It is not a de Polignac number, because 11313591 - 2² = 11313587 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11313593) 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, 20920 + ... + 21453.

It is an arithmetic number, because the mean of its divisors is an integer number (1906830).

Almost surely, 2^11313591 is an apocalyptic number.

11313591 is a deficient number, since it is larger than the sum of its proper divisors (3941049).

11313591 is an equidigital number, since it uses as much as digits as its factorization.

11313591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42465.

The product of its digits is 405, while the sum is 24.

The square root of 11313591 is about 3363.5681946409. The cubic root of 11313591 is about 224.4916325008.

The spelling of 11313591 in words is "eleven million, three hundred thirteen thousand, five hundred ninety-one".