199232449 has 4 divisors (see below), whose sum is σ = 214558036. Its totient is φ = 183906864.

The previous prime is 199232431. The next prime is 199232477. The reversal of 199232449 is 944232991.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40094224 + 159138225 = 6332^2 + 12615^2 .

It is a cyclic number.

It is not a de Polignac number, because 199232449 - 2¹³ = 199224257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199232149) 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, 7662774 + ... + 7662799.

It is an arithmetic number, because the mean of its divisors is an integer number (53639509).

Almost surely, 2^199232449 is an apocalyptic number.

It is an amenable number.

199232449 is a deficient number, since it is larger than the sum of its proper divisors (15325587).

199232449 is a wasteful number, since it uses less digits than its factorization.

199232449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15325586.

The product of its digits is 139968, while the sum is 43.

The square root of 199232449 is about 14114.9725114858. The cubic root of 199232449 is about 584.0544776618.

The spelling of 199232449 in words is "one hundred ninety-nine million, two hundred thirty-two thousand, four hundred forty-nine".