618084091 has 2 divisors, whose sum is σ = 618084092. Its totient is φ = 618084090.

The previous prime is 618084073. The next prime is 618084119. The reversal of 618084091 is 190480816.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 618084091 - 2¹⁷ = 617953019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 618084091.

It is not a weakly prime, because it can be changed into another prime (618084031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309042045 + 309042046.

It is an arithmetic number, because the mean of its divisors is an integer number (309042046).

Almost surely, 2^618084091 is an apocalyptic number.

618084091 is a deficient number, since it is larger than the sum of its proper divisors (1).

618084091 is an equidigital number, since it uses as much as digits as its factorization.

618084091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 618084091 is about 24861.2970498323. The cubic root of 618084091 is about 851.8226591119.

The spelling of 618084091 in words is "six hundred eighteen million, eighty-four thousand, ninety-one".