745317 has 6 divisors (see below), whose sum is σ = 1076582. Its totient is φ = 496872.

The previous prime is 745307. The next prime is 745337. The reversal of 745317 is 713547.

It can be written as a sum of positive squares in only one way, i.e., 690561 + 54756 = 831^2 + 234^2 .

It is not a de Polignac number, because 745317 - 2⁴ = 745301 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41398 + ... + 41415.

2⁷⁴⁵³¹⁷ is an apocalyptic number.

It is an amenable number.

745317 is a deficient number, since it is larger than the sum of its proper divisors (331265).

745317 is a wasteful number, since it uses less digits than its factorization.

745317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82819 (or 82816 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 745317 is about 863.3174387211. The cubic root of 745317 is about 90.6665330039. Note that the first 3 decimals are identical.

The spelling of 745317 in words is "seven hundred forty-five thousand, three hundred seventeen".