197256113 has 4 divisors (see below), whose sum is σ = 197589348. Its totient is φ = 196922880.

The previous prime is 197256061. The next prime is 197256167. The reversal of 197256113 is 311652791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311652791 = 4129 ⋅75479.

It can be written as a sum of positive squares in 2 ways, for example, as 81306289 + 115949824 = 9017^2 + 10768^2 .

It is a cyclic number.

It is not a de Polignac number, because 197256113 - 2¹⁰ = 197255089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197256313) 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, 165728 + ... + 166913.

It is an arithmetic number, because the mean of its divisors is an integer number (49397337).

Almost surely, 2^197256113 is an apocalyptic number.

It is an amenable number.

197256113 is a deficient number, since it is larger than the sum of its proper divisors (333235).

197256113 is an equidigital number, since it uses as much as digits as its factorization.

197256113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333234.

The product of its digits is 11340, while the sum is 35.

The square root of 197256113 is about 14044.7895320649. The cubic root of 197256113 is about 582.1168317628.

It can be divided in two parts, 1972 and 56113, that added together give a palindrome (58085).

The spelling of 197256113 in words is "one hundred ninety-seven million, two hundred fifty-six thousand, one hundred thirteen".