745500913 has 2 divisors, whose sum is σ = 745500914. Its totient is φ = 745500912.

The previous prime is 745500871. The next prime is 745500979. The reversal of 745500913 is 319005547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 611473984 + 134026929 = 24728^2 + 11577^2 .

It is a cyclic number.

It is not a de Polignac number, because 745500913 - 2²⁵ = 711946481 is a prime.

It is a super-2 number, since 2×745500913² = 1111543222567667138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (745500113) 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 as a sum of consecutive naturals, namely, 372750456 + 372750457.

It is an arithmetic number, because the mean of its divisors is an integer number (372750457).

Almost surely, 2^745500913 is an apocalyptic number.

It is an amenable number.

745500913 is a deficient number, since it is larger than the sum of its proper divisors (1).

745500913 is an equidigital number, since it uses as much as digits as its factorization.

745500913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 745500913 is about 27303.8626022034. The cubic root of 745500913 is about 906.7398995748.

The spelling of 745500913 in words is "seven hundred forty-five million, five hundred thousand, nine hundred thirteen".