44245013 has 2 divisors, whose sum is σ = 44245014. Its totient is φ = 44245012.

The previous prime is 44245009. The next prime is 44245043. The reversal of 44245013 is 31054244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41499364 + 2745649 = 6442^2 + 1657^2 .

It is a cyclic number.

It is not a de Polignac number, because 44245013 - 2² = 44245009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44245013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44245043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22122506 + 22122507.

It is an arithmetic number, because the mean of its divisors is an integer number (22122507).

Almost surely, 2^44245013 is an apocalyptic number.

It is an amenable number.

44245013 is a deficient number, since it is larger than the sum of its proper divisors (1).

44245013 is an equidigital number, since it uses as much as digits as its factorization.

44245013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 44245013 is about 6651.6924913889. The cubic root of 44245013 is about 353.6889097769.

Adding to 44245013 its reverse (31054244), we get a palindrome (75299257).

The spelling of 44245013 in words is "forty-four million, two hundred forty-five thousand, thirteen".