12752591 has 4 divisors (see below), whose sum is σ = 13423800. Its totient is φ = 12081384.

The previous prime is 12752573. The next prime is 12752609. The reversal of 12752591 is 19525721.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12752573) and next prime (12752609).

It is a cyclic number.

It is not a de Polignac number, because 12752591 - 2⁶ = 12752527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12752521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335576 + ... + 335613.

It is an arithmetic number, because the mean of its divisors is an integer number (3355950).

Almost surely, 2^12752591 is an apocalyptic number.

12752591 is a deficient number, since it is larger than the sum of its proper divisors (671209).

12752591 is an equidigital number, since it uses as much as digits as its factorization.

12752591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671208.

The product of its digits is 6300, while the sum is 32.

The square root of 12752591 is about 3571.0770084108. The cubic root of 12752591 is about 233.6322601874.

The spelling of 12752591 in words is "twelve million, seven hundred fifty-two thousand, five hundred ninety-one".