115243497 has 12 divisors (see below), whose sum is σ = 170523444. Its totient is φ = 74954880.

The previous prime is 115243489. The next prime is 115243511. The reversal of 115243497 is 794342511.

115243497 is a `hidden beast` number, since 11 + 524 + 34 + 97 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 35748441 + 79495056 = 5979^2 + 8916^2 .

It is not a de Polignac number, because 115243497 - 2³ = 115243489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115245497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155788 + ... + 156525.

It is an arithmetic number, because the mean of its divisors is an integer number (14210287).

Almost surely, 2^115243497 is an apocalyptic number.

It is an amenable number.

115243497 is a deficient number, since it is larger than the sum of its proper divisors (55279947).

115243497 is a wasteful number, since it uses less digits than its factorization.

115243497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312360 (or 312357 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 115243497 is about 10735.1523976141. The cubic root of 115243497 is about 486.6373921112.

The spelling of 115243497 in words is "one hundred fifteen million, two hundred forty-three thousand, four hundred ninety-seven".