1118641583 has 2 divisors, whose sum is σ = 1118641584. Its totient is φ = 1118641582.

The previous prime is 1118641571. The next prime is 1118641613. The reversal of 1118641583 is 3851468111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1118641583 - 2⁴ = 1118641567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1118641523) 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 as a sum of consecutive naturals, namely, 559320791 + 559320792.

It is an arithmetic number, because the mean of its divisors is an integer number (559320792).

Almost surely, 2^1118641583 is an apocalyptic number.

1118641583 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118641583 is an equidigital number, since it uses as much as digits as its factorization.

1118641583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 38.

The square root of 1118641583 is about 33446.0996679732. The cubic root of 1118641583 is about 1038.0787950204.

The spelling of 1118641583 in words is "one billion, one hundred eighteen million, six hundred forty-one thousand, five hundred eighty-three".