12752645 has 8 divisors (see below), whose sum is σ = 15415704. Its totient is φ = 10127104.

The previous prime is 12752609. The next prime is 12752653. The reversal of 12752645 is 54625721.

It can be written as a sum of positive squares in 4 ways, for example, as 5013121 + 7739524 = 2239^2 + 2782^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12752645 - 2¹⁴ = 12736261 is a prime.

It is a Duffinian number.

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, 8624 + ... + 9993.

It is an arithmetic number, because the mean of its divisors is an integer number (1926963).

Almost surely, 2^12752645 is an apocalyptic number.

It is an amenable number.

12752645 is a deficient number, since it is larger than the sum of its proper divisors (2663059).

12752645 is a wasteful number, since it uses less digits than its factorization.

12752645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18759.

The product of its digits is 16800, while the sum is 32.

The square root of 12752645 is about 3571.0845691470. The cubic root of 12752645 is about 233.6325899537.

The spelling of 12752645 in words is "twelve million, seven hundred fifty-two thousand, six hundred forty-five".