199593245 has 8 divisors (see below), whose sum is σ = 241260984. Its totient is φ = 158508544.

The previous prime is 199593239. The next prime is 199593257. The reversal of 199593245 is 542395991.

It can be written as a sum of positive squares in 4 ways, for example, as 17397241 + 182196004 = 4171^2 + 13498^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 199593245 - 2¹⁶ = 199527709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199593245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145004 + ... + 146373.

It is an arithmetic number, because the mean of its divisors is an integer number (30157623).

Almost surely, 2^199593245 is an apocalyptic number.

It is an amenable number.

199593245 is a deficient number, since it is larger than the sum of its proper divisors (41667739).

199593245 is a wasteful number, since it uses less digits than its factorization.

199593245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291519.

The product of its digits is 437400, while the sum is 47.

The square root of 199593245 is about 14127.7473434373. The cubic root of 199593245 is about 584.4068256281.

The spelling of 199593245 in words is "one hundred ninety-nine million, five hundred ninety-three thousand, two hundred forty-five".