197111313 has 80 divisors (see below), whose sum is σ = 352894080. Its totient is φ = 107308800.

The previous prime is 197111309. The next prime is 197111351. The reversal of 197111313 is 313111791.

It is not a de Polignac number, because 197111313 - 2² = 197111309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (197111303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1417998 + ... + 1418136.

It is an arithmetic number, because the mean of its divisors is an integer number (4411176).

Almost surely, 2^197111313 is an apocalyptic number.

It is an amenable number.

197111313 is a deficient number, since it is larger than the sum of its proper divisors (155782767).

197111313 is a wasteful number, since it uses less digits than its factorization.

197111313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 251 counting only the distinct ones).

The product of its digits is 567, while the sum is 27.

The square root of 197111313 is about 14039.6336490665. The cubic root of 197111313 is about 581.9743585260.

The spelling of 197111313 in words is "one hundred ninety-seven million, one hundred eleven thousand, three hundred thirteen".