199118674 has 4 divisors (see below), whose sum is σ = 298678014. Its totient is φ = 99559336.

The previous prime is 199118629. The next prime is 199118723. The reversal of 199118674 is 476811991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 192016449 + 7102225 = 13857^2 + 2665^2 .

It is an unprimeable number.

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, 49779667 + ... + 49779670.

Almost surely, 2^199118674 is an apocalyptic number.

199118674 is a deficient number, since it is larger than the sum of its proper divisors (99559340).

199118674 is an equidigital number, since it uses as much as digits as its factorization.

199118674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99559339.

The product of its digits is 108864, while the sum is 46.

The square root of 199118674 is about 14110.9416411521. The cubic root of 199118674 is about 583.9432784874.

The spelling of 199118674 in words is "one hundred ninety-nine million, one hundred eighteen thousand, six hundred seventy-four".