197097912 has 48 divisors (see below), whose sum is σ = 582337080. Its totient is φ = 59726400.

The previous prime is 197097911. The next prime is 197097961. The reversal of 197097912 is 219790791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197097911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123639 + ... + 125222.

Almost surely, 2^197097912 is an apocalyptic number.

197097912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

197097912 is an abundant number, since it is smaller than the sum of its proper divisors (385239168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197097912 is a wasteful number, since it uses less digits than its factorization.

197097912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248884 (or 248877 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 45.

The square root of 197097912 is about 14039.1563849115. The cubic root of 197097912 is about 581.9611693369.

The spelling of 197097912 in words is "one hundred ninety-seven million, ninety-seven thousand, nine hundred twelve".