445012313 has 2 divisors, whose sum is σ = 445012314. Its totient is φ = 445012312.

The previous prime is 445012231. The next prime is 445012369. The reversal of 445012313 is 313210544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 407716864 + 37295449 = 20192^2 + 6107^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445012313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (445012013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222506156 + 222506157.

It is an arithmetic number, because the mean of its divisors is an integer number (222506157).

Almost surely, 2^445012313 is an apocalyptic number.

It is an amenable number.

445012313 is a deficient number, since it is larger than the sum of its proper divisors (1).

445012313 is an equidigital number, since it uses as much as digits as its factorization.

445012313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 445012313 is about 21095.3149537996. The cubic root of 445012313 is about 763.4677136508.

Adding to 445012313 its reverse (313210544), we get a palindrome (758222857).

The spelling of 445012313 in words is "four hundred forty-five million, twelve thousand, three hundred thirteen".