115705247 has 8 divisors (see below), whose sum is σ = 140013216. Its totient is φ = 93341952.

The previous prime is 115705223. The next prime is 115705259. The reversal of 115705247 is 742507511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115705247 - 2⁸ = 115704991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115705267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486038 + ... + 486275.

It is an arithmetic number, because the mean of its divisors is an integer number (17501652).

Almost surely, 2^115705247 is an apocalyptic number.

115705247 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

115705247 is a deficient number, since it is larger than the sum of its proper divisors (24307969).

115705247 is an equidigital number, since it uses as much as digits as its factorization.

115705247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972337.

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 115705247 is about 10756.6373463086. The cubic root of 115705247 is about 487.2864681317.

The spelling of 115705247 in words is "one hundred fifteen million, seven hundred five thousand, two hundred forty-seven".