199242002 has 4 divisors (see below), whose sum is σ = 298863006. Its totient is φ = 99621000.

The previous prime is 199241983. The next prime is 199242041. The reversal of 199242002 is 200242991.

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., 178730161 + 20511841 = 13369^2 + 4529^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49810499 + ... + 49810502.

Almost surely, 2^199242002 is an apocalyptic number.

199242002 is a deficient number, since it is larger than the sum of its proper divisors (99621004).

199242002 is an equidigital number, since it uses as much as digits as its factorization.

199242002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99621003.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 199242002 is about 14115.3109069549. The cubic root of 199242002 is about 584.0638124585.

Adding to 199242002 its reverse (200242991), we get a palindrome (399484993).

The spelling of 199242002 in words is "one hundred ninety-nine million, two hundred forty-two thousand, two".