199348257 has 8 divisors (see below), whose sum is σ = 265866400. Its totient is φ = 132864480.

The previous prime is 199348241. The next prime is 199348271. The reversal of 199348257 is 752843991.

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

It is not a de Polignac number, because 199348257 - 2⁴ = 199348241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199348207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11994 + ... + 23292.

It is an arithmetic number, because the mean of its divisors is an integer number (33233300).

Almost surely, 2^199348257 is an apocalyptic number.

It is an amenable number.

199348257 is a deficient number, since it is larger than the sum of its proper divisors (66518143).

199348257 is a wasteful number, since it uses less digits than its factorization.

199348257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17183.

The product of its digits is 544320, while the sum is 48.

The square root of 199348257 is about 14119.0742260249. The cubic root of 199348257 is about 584.1676203420.

The spelling of 199348257 in words is "one hundred ninety-nine million, three hundred forty-eight thousand, two hundred fifty-seven".