197133199 has 4 divisors (see below), whose sum is σ = 201717736. Its totient is φ = 192548664.

The previous prime is 197133193. The next prime is 197133239. The reversal of 197133199 is 991331791.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 197133199 - 2³ = 197133191 is a prime.

It is a super-2 number, since 2×197133199² = 77722996295947202, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 4584493 = 197133199 / (1 + 9 + 7 + 1 + 3 + 3 + 1 + 9 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197133191) 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, 2292204 + ... + 2292289.

It is an arithmetic number, because the mean of its divisors is an integer number (50429434).

Almost surely, 2^197133199 is an apocalyptic number.

197133199 is a deficient number, since it is larger than the sum of its proper divisors (4584537).

197133199 is an equidigital number, since it uses as much as digits as its factorization.

197133199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4584536.

The product of its digits is 45927, while the sum is 43.

The square root of 197133199 is about 14040.4130637243. The cubic root of 197133199 is about 581.9958973192.

The spelling of 197133199 in words is "one hundred ninety-seven million, one hundred thirty-three thousand, one hundred ninety-nine".