1198118564 has 12 divisors (see below), whose sum is σ = 2147846988. Its totient is φ = 584448000.

The previous prime is 1198118561. The next prime is 1198118609. The reversal of 1198118564 is 4658118911.

It can be written as a sum of positive squares in 2 ways, for example, as 575616064 + 622502500 = 23992^2 + 24950^2 .

It is not an unprimeable number, because it can be changed into a prime (1198118561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3652637 + ... + 3652964.

It is an arithmetic number, because the mean of its divisors is an integer number (178987249).

Almost surely, 2^1198118564 is an apocalyptic number.

It is an amenable number.

1198118564 is a deficient number, since it is larger than the sum of its proper divisors (949728424).

1198118564 is a wasteful number, since it uses less digits than its factorization.

1198118564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7305646 (or 7305644 counting only the distinct ones).

The product of its digits is 69120, while the sum is 44.

The square root of 1198118564 is about 34613.8493091999. The cubic root of 1198118564 is about 1062.1029108804.

The spelling of 1198118564 in words is "one billion, one hundred ninety-eight million, one hundred eighteen thousand, five hundred sixty-four".