12145744 has 20 divisors (see below), whose sum is σ = 25342996. Its totient is φ = 5605632.

The previous prime is 12145739. The next prime is 12145753. The reversal of 12145744 is 44754121.

It can be written as a sum of positive squares in 2 ways, for example, as 2286144 + 9859600 = 1512^2 + 3140^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28989 + ... + 29404.

Almost surely, 2^12145744 is an apocalyptic number.

It is an amenable number.

12145744 is an abundant number, since it is smaller than the sum of its proper divisors (13197252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12145744 is a wasteful number, since it uses less digits than its factorization.

12145744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58414 (or 58408 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 12145744 is about 3485.0744611844. The cubic root of 12145744 is about 229.8659836783.

Adding to 12145744 its reverse (44754121), we get a palindrome (56899865).

The spelling of 12145744 in words is "twelve million, one hundred forty-five thousand, seven hundred forty-four".