115812154247 has 4 divisors (see below), whose sum is σ = 115865748336. Its totient is φ = 115758560160.

The previous prime is 115812154243. The next prime is 115812154253. The reversal of 115812154247 is 742451218511.

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

It is a cyclic number.

It is not a de Polignac number, because 115812154247 - 2² = 115812154243 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 (115812154243) 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, 26793803 + ... + 26798124.

It is an arithmetic number, because the mean of its divisors is an integer number (28966437084).

Almost surely, 2^115812154247 is an apocalyptic number.

115812154247 is a deficient number, since it is larger than the sum of its proper divisors (53594089).

115812154247 is an equidigital number, since it uses as much as digits as its factorization.

115812154247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53594088.

The product of its digits is 89600, while the sum is 41.

The spelling of 115812154247 in words is "one hundred fifteen billion, eight hundred twelve million, one hundred fifty-four thousand, two hundred forty-seven".