12445901 has 8 divisors (see below), whose sum is σ = 13865880. Its totient is φ = 11092032.

The previous prime is 12445889. The next prime is 12445907. The reversal of 12445901 is 10954421.

It can be written as a sum of positive squares in 4 ways, for example, as 13225 + 12432676 = 115^2 + 3526^2 .

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 12445901 - 2¹⁸ = 12183757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12445907) 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, 16130 + ... + 16883.

It is an arithmetic number, because the mean of its divisors is an integer number (1733235).

Almost surely, 2^12445901 is an apocalyptic number.

It is an amenable number.

12445901 is a deficient number, since it is larger than the sum of its proper divisors (1419979).

12445901 is a wasteful number, since it uses less digits than its factorization.

12445901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33055.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12445901 is about 3527.8748560571. The cubic root of 12445901 is about 231.7441504241.

The spelling of 12445901 in words is "twelve million, four hundred forty-five thousand, nine hundred one".