945907513 has 2 divisors, whose sum is σ = 945907514. Its totient is φ = 945907512.

The previous prime is 945907493. The next prime is 945907531. The reversal of 945907513 is 315709549.

945907513 = 21747² + 21748².

945907513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (945907531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 472975504 + 472932009 = 21748^2 + 21747^2 .

It is a cyclic number.

It is not a de Polignac number, because 945907513 - 2⁵ = 945907481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 945907513.

It is not a weakly prime, because it can be changed into another prime (945907583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472953756 + 472953757.

It is an arithmetic number, because the mean of its divisors is an integer number (472953757).

Almost surely, 2^945907513 is an apocalyptic number.

945907513 is the 21748-th centered square number.

It is an amenable number.

945907513 is a deficient number, since it is larger than the sum of its proper divisors (1).

945907513 is an equidigital number, since it uses as much as digits as its factorization.

945907513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 945907513 is about 30755.6094558375. The cubic root of 945907513 is about 981.6339232627.

The spelling of 945907513 in words is "nine hundred forty-five million, nine hundred seven thousand, five hundred thirteen".