1918198283 has 2 divisors, whose sum is σ = 1918198284. Its totient is φ = 1918198282.

The previous prime is 1918198237. The next prime is 1918198307. The reversal of 1918198283 is 3828918191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1918198283 - 2²⁸ = 1649762827 is a prime.

It is not a weakly prime, because it can be changed into another prime (1918198783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 959099141 + 959099142.

It is an arithmetic number, because the mean of its divisors is an integer number (959099142).

Almost surely, 2^1918198283 is an apocalyptic number.

1918198283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1918198283 is an equidigital number, since it uses as much as digits as its factorization.

1918198283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 50.

The square root of 1918198283 is about 43797.2405865940. The cubic root of 1918198283 is about 1242.5041061526.

The spelling of 1918198283 in words is "one billion, nine hundred eighteen million, one hundred ninety-eight thousand, two hundred eighty-three".