199875361 has 8 divisors (see below), whose sum is σ = 233091200. Its totient is φ = 171321444.

The previous prime is 199875353. The next prime is 199875367. The reversal of 199875361 is 163578991.

It is not a de Polignac number, because 199875361 - 2³ = 199875353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199875367) 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, 291021 + ... + 291706.

It is an arithmetic number, because the mean of its divisors is an integer number (29136400).

Almost surely, 2^199875361 is an apocalyptic number.

It is an amenable number.

199875361 is a deficient number, since it is larger than the sum of its proper divisors (33215839).

199875361 is an frugal number, since it uses more digits than its factorization.

199875361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582748 (or 582734 counting only the distinct ones).

The product of its digits is 408240, while the sum is 49.

The square root of 199875361 is about 14137.7282828607. The cubic root of 199875361 is about 584.6820401825.

The spelling of 199875361 in words is "one hundred ninety-nine million, eight hundred seventy-five thousand, three hundred sixty-one".