11440131 has 8 divisors (see below), whose sum is σ = 15916800. Its totient is φ = 7295112.

The previous prime is 11440127. The next prime is 11440151. The reversal of 11440131 is 13104411.

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

It is not a de Polignac number, because 11440131 - 2² = 11440127 is a prime.

It is a super-2 number, since 2×11440131² = 261753194594322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11440131.

It is not an unprimeable number, because it can be changed into a prime (11440151) 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, 82831 + ... + 82968.

It is an arithmetic number, because the mean of its divisors is an integer number (1989600).

Almost surely, 2^11440131 is an apocalyptic number.

11440131 is a deficient number, since it is larger than the sum of its proper divisors (4476669).

11440131 is a wasteful number, since it uses less digits than its factorization.

11440131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165825.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 11440131 is about 3382.3262704831. The cubic root of 11440131 is about 225.3254943314.

Adding to 11440131 its reverse (13104411), we get a palindrome (24544542).

The spelling of 11440131 in words is "eleven million, four hundred forty thousand, one hundred thirty-one".