115089531197 has 4 divisors (see below), whose sum is σ = 115174095036. Its totient is φ = 115004967360.

The previous prime is 115089531169. The next prime is 115089531229. The reversal of 115089531197 is 791135980511.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53432171716 + 61657359481 = 231154^2 + 248309^2 .

It is a cyclic number.

It is not a de Polignac number, because 115089531197 - 2¹⁶ = 115089465661 is a prime.

It is a super-2 number, since 2×115089531197² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115089530197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42279878 + ... + 42282599.

It is an arithmetic number, because the mean of its divisors is an integer number (28793523759).

Almost surely, 2^115089531197 is an apocalyptic number.

It is an amenable number.

115089531197 is a deficient number, since it is larger than the sum of its proper divisors (84563839).

115089531197 is an equidigital number, since it uses as much as digits as its factorization.

115089531197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84563838.

The product of its (nonzero) digits is 340200, while the sum is 50.

The spelling of 115089531197 in words is "one hundred fifteen billion, eighty-nine million, five hundred thirty-one thousand, one hundred ninety-seven".