115406247 has 32 divisors (see below), whose sum is σ = 178513920. Its totient is φ = 65581920.

The previous prime is 115406243. The next prime is 115406299. The reversal of 115406247 is 742604511.

It is not a de Polignac number, because 115406247 - 2² = 115406243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115406243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63688 + ... + 65474.

It is an arithmetic number, because the mean of its divisors is an integer number (5578560).

Almost surely, 2^115406247 is an apocalyptic number.

115406247 is a deficient number, since it is larger than the sum of its proper divisors (63107673).

115406247 is a wasteful number, since it uses less digits than its factorization.

115406247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 115406247 is about 10742.7299603034. The cubic root of 115406247 is about 486.8663652100.

The spelling of 115406247 in words is "one hundred fifteen million, four hundred six thousand, two hundred forty-seven".