197066319 has 8 divisors (see below), whose sum is σ = 265921152. Its totient is φ = 129794520.

The previous prime is 197066297. The next prime is 197066321. The reversal of 197066319 is 913660791.

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

It is not a de Polignac number, because 197066319 - 2²⁴ = 180289103 is a prime.

It is a super-2 number, since 2×197066319² = 77670268168419522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197064319) 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, 395467 + ... + 395964.

It is an arithmetic number, because the mean of its divisors is an integer number (33240144).

Almost surely, 2^197066319 is an apocalyptic number.

197066319 is a deficient number, since it is larger than the sum of its proper divisors (68854833).

197066319 is an equidigital number, since it uses as much as digits as its factorization.

197066319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791517.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 197066319 is about 14038.0311653736. The cubic root of 197066319 is about 581.9300733172.

The spelling of 197066319 in words is "one hundred ninety-seven million, sixty-six thousand, three hundred nineteen".