745945313 has 2 divisors, whose sum is σ = 745945314. Its totient is φ = 745945312.

The previous prime is 745945283. The next prime is 745945357. The reversal of 745945313 is 313549547.

745945313 = 19312² + 19313².

745945313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 372991969 + 372953344 = 19313^2 + 19312^2 .

It is a cyclic number.

It is not a de Polignac number, because 745945313 - 2¹⁴ = 745928929 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 (745945813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372972656 + 372972657.

It is an arithmetic number, because the mean of its divisors is an integer number (372972657).

Almost surely, 2^745945313 is an apocalyptic number.

745945313 is the 19313-rd centered square number.

It is an amenable number.

745945313 is a deficient number, since it is larger than the sum of its proper divisors (1).

745945313 is an equidigital number, since it uses as much as digits as its factorization.

745945313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 41.

The square root of 745945313 is about 27311.9994324839. Note that the first 3 decimals coincide. The cubic root of 745945313 is about 906.9200358037.

The spelling of 745945313 in words is "seven hundred forty-five million, nine hundred forty-five thousand, three hundred thirteen".