2131232 has 12 divisors (see below), whose sum is σ = 4195926. Its totient is φ = 1065600.

The previous prime is 2131231. The next prime is 2131243. The reversal of 2131232 is 2321312.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1547536 + 583696 = 1244^2 + 764^2 .

It is not an unprimeable number, because it can be changed into a prime (2131231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33269 + ... + 33332.

2^2131232 is an apocalyptic number.

It is an amenable number.

2131232 is a deficient number, since it is larger than the sum of its proper divisors (2064694).

2131232 is an equidigital number, since it uses as much as digits as its factorization.

2131232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66611 (or 66603 counting only the distinct ones).

The product of its digits is 72, while the sum is 14.

The square root of 2131232 is about 1459.8739671629. The cubic root of 2131232 is about 128.6896370824.

Adding to 2131232 its reverse (2321312), we get a palindrome (4452544).

The spelling of 2131232 in words is "two million, one hundred thirty-one thousand, two hundred thirty-two".