12733144 has 32 divisors (see below), whose sum is σ = 24786000. Its totient is φ = 6128512.

The previous prime is 12733139. The next prime is 12733151. The reversal of 12733144 is 44133721.

It is a super-2 number, since 2×12733144² = 324265912249472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24762 + ... + 25270.

Almost surely, 2^12733144 is an apocalyptic number.

It is an amenable number.

12733144 is a deficient number, since it is larger than the sum of its proper divisors (12052856).

12733144 is a wasteful number, since it uses less digits than its factorization.

12733144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627 (or 623 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 12733144 is about 3568.3531215394. The cubic root of 12733144 is about 233.5134409863.

Adding to 12733144 its reverse (44133721), we get a palindrome (56866865).

The spelling of 12733144 in words is "twelve million, seven hundred thirty-three thousand, one hundred forty-four".