7318133 has 4 divisors (see below), whose sum is σ = 7335468. Its totient is φ = 7300800.

The previous prime is 7318099. The next prime is 7318159. The reversal of 7318133 is 3318137.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4831204 + 2486929 = 2198^2 + 1577^2 .

It is a cyclic number.

It is not a de Polignac number, because 7318133 - 2¹² = 7314037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7318033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8018 + ... + 8883.

It is an arithmetic number, because the mean of its divisors is an integer number (1833867).

Almost surely, 2^7318133 is an apocalyptic number.

It is an amenable number.

7318133 is a deficient number, since it is larger than the sum of its proper divisors (17335).

7318133 is a wasteful number, since it uses less digits than its factorization.

7318133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17334.

The product of its digits is 1512, while the sum is 26.

The square root of 7318133 is about 2705.2047981622. The cubic root of 7318133 is about 194.1482287276.

The spelling of 7318133 in words is "seven million, three hundred eighteen thousand, one hundred thirty-three".