445036013 has 6 divisors (see below), whose sum is σ = 472754826. Its totient is φ = 418857152.

The previous prime is 445036003. The next prime is 445036019. The reversal of 445036013 is 310630544.

It can be written as a sum of positive squares in 3 ways, for example, as 304921444 + 140114569 = 17462^2 + 11837^2 .

It is not a de Polignac number, because 445036013 - 2⁸ = 445035757 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 (445036019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 769670 + ... + 770247.

It is an arithmetic number, because the mean of its divisors is an integer number (78792471).

Almost surely, 2^445036013 is an apocalyptic number.

It is an amenable number.

445036013 is a deficient number, since it is larger than the sum of its proper divisors (27718813).

445036013 is a wasteful number, since it uses less digits than its factorization.

445036013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539951 (or 1539934 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 445036013 is about 21095.8766824230. The cubic root of 445036013 is about 763.4812667316.

Adding to 445036013 its reverse (310630544), we get a palindrome (755666557).

The spelling of 445036013 in words is "four hundred forty-five million, thirty-six thousand, thirteen".