7318945 has 16 divisors (see below), whose sum is σ = 9464832. Its totient is φ = 5417280.

The previous prime is 7318943. The next prime is 7318967. The reversal of 7318945 is 5498137.

It is not a de Polignac number, because 7318945 - 2¹ = 7318943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7318943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2539 + ... + 4591.

It is an arithmetic number, because the mean of its divisors is an integer number (591552).

Almost surely, 2^7318945 is an apocalyptic number.

It is an amenable number.

7318945 is a deficient number, since it is larger than the sum of its proper divisors (2145887).

7318945 is a wasteful number, since it uses less digits than its factorization.

7318945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112.

The product of its digits is 30240, while the sum is 37.

The square root of 7318945 is about 2705.3548750580. The cubic root of 7318945 is about 194.1554091807.

The spelling of 7318945 in words is "seven million, three hundred eighteen thousand, nine hundred forty-five".