131123224 has 8 divisors (see below), whose sum is σ = 245856060. Its totient is φ = 65561608.

The previous prime is 131123203. The next prime is 131123249. The reversal of 131123224 is 422321131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8195194 + ... + 8195209.

Almost surely, 2^131123224 is an apocalyptic number.

It is an amenable number.

131123224 is a deficient number, since it is larger than the sum of its proper divisors (114732836).

131123224 is a wasteful number, since it uses less digits than its factorization.

131123224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16390409 (or 16390405 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 131123224 is about 11450.9049424052. The cubic root of 131123224 is about 508.0345007258.

Adding to 131123224 its reverse (422321131), we get a palindrome (553444355).

The spelling of 131123224 in words is "one hundred thirty-one million, one hundred twenty-three thousand, two hundred twenty-four".