2131744 has 12 divisors (see below), whose sum is σ = 4196934. Its totient is φ = 1065856.

The previous prime is 2131721. The next prime is 2131771. The reversal of 2131744 is 4471312.

2131744 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2131600 + 144 = 1460^2 + 12^2 .

It is a plaindrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33277 + ... + 33340.

2^2131744 is an apocalyptic number.

It is an amenable number.

2131744 is a deficient number, since it is larger than the sum of its proper divisors (2065190).

2131744 is an equidigital number, since it uses as much as digits as its factorization.

2131744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66627 (or 66619 counting only the distinct ones).

The product of its digits is 672, while the sum is 22.

The square root of 2131744 is about 1460.0493142357. The cubic root of 2131744 is about 128.6999415790.

The spelling of 2131744 in words is "two million, one hundred thirty-one thousand, seven hundred forty-four".