197983129 has 16 divisors (see below), whose sum is σ = 206219520. Its totient is φ = 189961600.

The previous prime is 197983127. The next prime is 197983141. The reversal of 197983129 is 921389791.

It is a cyclic number.

It is not a de Polignac number, because 197983129 - 2¹ = 197983127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197983127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 849597 + ... + 849829.

It is an arithmetic number, because the mean of its divisors is an integer number (12888720).

Almost surely, 2^197983129 is an apocalyptic number.

It is an amenable number.

197983129 is a deficient number, since it is larger than the sum of its proper divisors (8236391).

197983129 is a wasteful number, since it uses less digits than its factorization.

197983129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560.

The product of its digits is 244944, while the sum is 49.

The square root of 197983129 is about 14070.6477818187. The cubic root of 197983129 is about 582.8311136074.

The spelling of 197983129 in words is "one hundred ninety-seven million, nine hundred eighty-three thousand, one hundred twenty-nine".