197016911 has 16 divisors (see below), whose sum is σ = 243292224. Its totient is φ = 155361024.

The previous prime is 197016907. The next prime is 197016913. The reversal of 197016911 is 119610791.

It is not a de Polignac number, because 197016911 - 2² = 197016907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197016913) 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 15 ways as a sum of consecutive naturals, for example, 25025 + ... + 31941.

It is an arithmetic number, because the mean of its divisors is an integer number (15205764).

Almost surely, 2^197016911 is an apocalyptic number.

197016911 is a deficient number, since it is larger than the sum of its proper divisors (46275313).

197016911 is a wasteful number, since it uses less digits than its factorization.

197016911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7250.

The product of its (nonzero) digits is 3402, while the sum is 35.

The square root of 197016911 is about 14036.2712641214. The cubic root of 197016911 is about 581.8814358764.

It can be divided in two parts, 1970 and 16911, that added together give a palindrome (18881).

The spelling of 197016911 in words is "one hundred ninety-seven million, sixteen thousand, nine hundred eleven".