115564247 has 4 divisors (see below), whose sum is σ = 115598736. Its totient is φ = 115529760.

The previous prime is 115564243. The next prime is 115564271. The reversal of 115564247 is 742465511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742465511 = 29 ⋅25602259.

It is a cyclic number.

It is not a de Polignac number, because 115564247 - 2² = 115564243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115564243) 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, 11603 + ... + 19124.

It is an arithmetic number, because the mean of its divisors is an integer number (28899684).

Almost surely, 2^115564247 is an apocalyptic number.

115564247 is a deficient number, since it is larger than the sum of its proper divisors (34489).

115564247 is an equidigital number, since it uses as much as digits as its factorization.

115564247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34488.

The product of its digits is 33600, while the sum is 35.

The square root of 115564247 is about 10750.0812555069. The cubic root of 115564247 is about 487.0884496841.

The spelling of 115564247 in words is "one hundred fifteen million, five hundred sixty-four thousand, two hundred forty-seven".