745078323 has 16 divisors (see below), whose sum is σ = 1084780800. Its totient is φ = 451133280.

The previous prime is 745078297. The next prime is 745078381. The reversal of 745078323 is 323870547.

It is not a de Polignac number, because 745078323 - 2⁶ = 745078259 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (745070323) 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 15 ways as a sum of consecutive naturals, for example, 26418 + ... + 46776.

It is an arithmetic number, because the mean of its divisors is an integer number (67798800).

Almost surely, 2^745078323 is an apocalyptic number.

745078323 is a deficient number, since it is larger than the sum of its proper divisors (339702477).

745078323 is a wasteful number, since it uses less digits than its factorization.

745078323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21482.

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 745078323 is about 27296.1228565524. The cubic root of 745078323 is about 906.5685375494.

The spelling of 745078323 in words is "seven hundred forty-five million, seventy-eight thousand, three hundred twenty-three".