918304133 has 2 divisors, whose sum is σ = 918304134. Its totient is φ = 918304132.

The previous prime is 918304081. The next prime is 918304171. The reversal of 918304133 is 331403819.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 493861729 + 424442404 = 22223^2 + 20602^2 .

It is a cyclic number.

It is not a de Polignac number, because 918304133 - 2¹⁴ = 918287749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 918304133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (918304193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459152066 + 459152067.

It is an arithmetic number, because the mean of its divisors is an integer number (459152067).

Almost surely, 2^918304133 is an apocalyptic number.

It is an amenable number.

918304133 is a deficient number, since it is larger than the sum of its proper divisors (1).

918304133 is an equidigital number, since it uses as much as digits as its factorization.

918304133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 918304133 is about 30303.5333418399. The cubic root of 918304133 is about 971.9908567306.

The spelling of 918304133 in words is "nine hundred eighteen million, three hundred four thousand, one hundred thirty-three".