12565045 has 8 divisors (see below), whose sum is σ = 15124824. Its totient is φ = 10020864.

The previous prime is 12565043. The next prime is 12565051. The reversal of 12565045 is 54056521.

It can be written as a sum of positive squares in 4 ways, for example, as 125316 + 12439729 = 354^2 + 3527^2 .

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 12565045 - 2¹ = 12565043 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 (12565043) 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, 2044 + ... + 5413.

It is an arithmetic number, because the mean of its divisors is an integer number (1890603).

Almost surely, 2^12565045 is an apocalyptic number.

It is an amenable number.

12565045 is a deficient number, since it is larger than the sum of its proper divisors (2559779).

12565045 is an equidigital number, since it uses as much as digits as its factorization.

12565045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7799.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 12565045 is about 3544.7207224265. The cubic root of 12565045 is about 232.4812949842.

The spelling of 12565045 in words is "twelve million, five hundred sixty-five thousand, forty-five".