12945604 has 27 divisors (see below), whose sum is σ = 26456493. Its totient is φ = 5526528.

The previous prime is 12945587. The next prime is 12945607. The reversal of 12945604 is 40654921.

The square root of 12945604 is 3598.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 12744900 + 200704 = 3570^2 + 448^2 .

It is not an unprimeable number, because it can be changed into a prime (12945607) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 50244 + ... + 50500.

Almost surely, 2^12945604 is an apocalyptic number.

12945604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12945604 is the 3598-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12945604

12945604 is an abundant number, since it is smaller than the sum of its proper divisors (13510889).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12945604 is an equidigital number, since it uses as much as digits as its factorization.

12945604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The cubic root of 12945604 is about 234.8050533542.

The spelling of 12945604 in words is "twelve million, nine hundred forty-five thousand, six hundred four".