618132133 has 4 divisors (see below), whose sum is σ = 623803180. Its totient is φ = 612461088.

The previous prime is 618132127. The next prime is 618132161. The reversal of 618132133 is 331231816.

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 186240609 + 431891524 = 13647^2 + 20782^2 .

It is a cyclic number.

It is not a de Polignac number, because 618132133 - 2¹⁷ = 618001061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618133133) 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 3 ways as a sum of consecutive naturals, for example, 2835360 + ... + 2835577.

It is an arithmetic number, because the mean of its divisors is an integer number (155950795).

Almost surely, 2^618132133 is an apocalyptic number.

It is an amenable number.

618132133 is a deficient number, since it is larger than the sum of its proper divisors (5671047).

618132133 is a wasteful number, since it uses less digits than its factorization.

618132133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5671046.

The product of its digits is 2592, while the sum is 28.

The square root of 618132133 is about 24862.2632316529. The cubic root of 618132133 is about 851.8447284951.

Adding to 618132133 its reverse (331231816), we get a palindrome (949363949).

The spelling of 618132133 in words is "six hundred eighteen million, one hundred thirty-two thousand, one hundred thirty-three".