12743645 has 8 divisors (see below), whose sum is σ = 15394560. Its totient is φ = 10126800.

The previous prime is 12743641. The next prime is 12743663. The reversal of 12743645 is 54634721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12743645 - 2² = 12743641 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12743641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7685 + ... + 9194.

It is an arithmetic number, because the mean of its divisors is an integer number (1924320).

Almost surely, 2^12743645 is an apocalyptic number.

It is an amenable number.

12743645 is a deficient number, since it is larger than the sum of its proper divisors (2650915).

12743645 is a wasteful number, since it uses less digits than its factorization.

12743645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17035.

The product of its digits is 20160, while the sum is 32.

The square root of 12743645 is about 3569.8242253646. The cubic root of 12743645 is about 233.5776160469.

The spelling of 12743645 in words is "twelve million, seven hundred forty-three thousand, six hundred forty-five".