197112959 has 4 divisors (see below), whose sum is σ = 197374104. Its totient is φ = 196851816.

The previous prime is 197112917. The next prime is 197112991. The reversal of 197112959 is 959211791.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197112959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197112659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129437 + ... + 130950.

It is an arithmetic number, because the mean of its divisors is an integer number (49343526).

Almost surely, 2^197112959 is an apocalyptic number.

197112959 is a deficient number, since it is larger than the sum of its proper divisors (261145).

197112959 is an equidigital number, since it uses as much as digits as its factorization.

197112959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261144.

The product of its digits is 51030, while the sum is 44.

The square root of 197112959 is about 14039.6922687073. The cubic root of 197112959 is about 581.9759784687.

The spelling of 197112959 in words is "one hundred ninety-seven million, one hundred twelve thousand, nine hundred fifty-nine".