12745472 has 18 divisors (see below), whose sum is σ = 25441668. Its totient is φ = 6372608.

The previous prime is 12745399. The next prime is 12745483. The reversal of 12745472 is 27454721.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24638 + ... + 25149.

It is an arithmetic number, because the mean of its divisors is an integer number (1413426).

Almost surely, 2^12745472 is an apocalyptic number.

It is an amenable number.

12745472 is a deficient number, since it is larger than the sum of its proper divisors (12696196).

12745472 is an frugal number, since it uses more digits than its factorization.

12745472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49803 (or 49789 counting only the distinct ones).

The product of its digits is 15680, while the sum is 32.

The square root of 12745472 is about 3570.0801111460. The cubic root of 12745472 is about 233.5887778433.

The spelling of 12745472 in words is "twelve million, seven hundred forty-five thousand, four hundred seventy-two".