11631279 has 8 divisors (see below), whose sum is σ = 16918272. Its totient is φ = 7049240.

The previous prime is 11631271. The next prime is 11631289. The reversal of 11631279 is 97213611.

11631279 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11631279 - 2³ = 11631271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11631271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176199 + ... + 176264.

It is an arithmetic number, because the mean of its divisors is an integer number (2114784).

Almost surely, 2^11631279 is an apocalyptic number.

11631279 is a deficient number, since it is larger than the sum of its proper divisors (5286993).

11631279 is a wasteful number, since it uses less digits than its factorization.

11631279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352477.

The product of its digits is 2268, while the sum is 30.

The square root of 11631279 is about 3410.4660971779. The cubic root of 11631279 is about 226.5735231006.

It can be divided in two parts, 1163 and 1279, that added together give a palindrome (2442).

The spelling of 11631279 in words is "eleven million, six hundred thirty-one thousand, two hundred seventy-nine".