2131324 has 24 divisors (see below), whose sum is σ = 4254768. Its totient is φ = 925440.

The previous prime is 2131321. The next prime is 2131361. The reversal of 2131324 is 4231312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2131298 and 2131307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131321) 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, 322 + ... + 2089.

It is an arithmetic number, because the mean of its divisors is an integer number (177282).

2^2131324 is an apocalyptic number.

It is an amenable number.

2131324 is a deficient number, since it is larger than the sum of its proper divisors (2123444).

2131324 is a wasteful number, since it uses less digits than its factorization.

2131324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445 (or 2443 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 2131324 is about 1459.9054763922. The cubic root of 2131324 is about 128.6914887933.

Adding to 2131324 its reverse (4231312), we get a palindrome (6362636).

The spelling of 2131324 in words is "two million, one hundred thirty-one thousand, three hundred twenty-four".