197992201 has 4 divisors (see below), whose sum is σ = 215991504. Its totient is φ = 179992900.

The previous prime is 197992199. The next prime is 197992213. The reversal of 197992201 is 102299791.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 197992201 - 2¹ = 197992199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197992231) 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, 8999635 + ... + 8999656.

It is an arithmetic number, because the mean of its divisors is an integer number (53997876).

Almost surely, 2^197992201 is an apocalyptic number.

197992201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

197992201 is a deficient number, since it is larger than the sum of its proper divisors (17999303).

197992201 is a wasteful number, since it uses less digits than its factorization.

197992201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17999302.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 197992201 is about 14070.9701513435. The cubic root of 197992201 is about 582.8400156507.

The spelling of 197992201 in words is "one hundred ninety-seven million, nine hundred ninety-two thousand, two hundred one".