11431172 has 12 divisors (see below), whose sum is σ = 20052816. Its totient is φ = 5701800.

The previous prime is 11431151. The next prime is 11431177. The reversal of 11431172 is 27113411.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11431177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1454 + ... + 4997.

It is an arithmetic number, because the mean of its divisors is an integer number (1671068).

Almost surely, 2^11431172 is an apocalyptic number.

It is an amenable number.

11431172 is a deficient number, since it is larger than the sum of its proper divisors (8621644).

11431172 is a wasteful number, since it uses less digits than its factorization.

11431172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6898 (or 6896 counting only the distinct ones).

The product of its digits is 168, while the sum is 20.

The square root of 11431172 is about 3381.0016267373. The cubic root of 11431172 is about 225.2666599733.

Adding to 11431172 its reverse (27113411), we get a palindrome (38544583).

The spelling of 11431172 in words is "eleven million, four hundred thirty-one thousand, one hundred seventy-two".