199097235 has 12 divisors (see below), whose sum is σ = 345101952. Its totient is φ = 106185168.

The previous prime is 199097231. The next prime is 199097237. The reversal of 199097235 is 532790991.

It is a happy number.

It is not a de Polignac number, because 199097235 - 2² = 199097231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 4424383 = 199097235 / (1 + 9 + 9 + 0 + 9 + 7 + 2 + 3 + 5).

It is not an unprimeable number, because it can be changed into a prime (199097231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2212147 + ... + 2212236.

It is an arithmetic number, because the mean of its divisors is an integer number (28758496).

Almost surely, 2^199097235 is an apocalyptic number.

199097235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

199097235 is a deficient number, since it is larger than the sum of its proper divisors (146004717).

199097235 is a wasteful number, since it uses less digits than its factorization.

199097235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4424394 (or 4424391 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 199097235 is about 14110.1819619734. The cubic root of 199097235 is about 583.9223201162.

It can be divided in two parts, 1990 and 97235, that added together give a square (99225 = 315²).

The spelling of 199097235 in words is "one hundred ninety-nine million, ninety-seven thousand, two hundred thirty-five".