11931359 has 4 divisors (see below), whose sum is σ = 13016040. Its totient is φ = 10846680.

The previous prime is 11931341. The next prime is 11931371. The reversal of 11931359 is 95313911.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11931359 - 2²⁰ = 10882783 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 (11931329) 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, 542324 + ... + 542345.

It is an arithmetic number, because the mean of its divisors is an integer number (3254010).

Almost surely, 2^11931359 is an apocalyptic number.

11931359 is a deficient number, since it is larger than the sum of its proper divisors (1084681).

11931359 is a wasteful number, since it uses less digits than its factorization.

11931359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084680.

The product of its digits is 3645, while the sum is 32.

The square root of 11931359 is about 3454.1799316191. The cubic root of 11931359 is about 228.5054894802.

It can be divided in two parts, 1193 and 1359, that added together give a palindrome (2552).

The spelling of 11931359 in words is "eleven million, nine hundred thirty-one thousand, three hundred fifty-nine".