115100243 has 4 divisors (see below), whose sum is σ = 117907608. Its totient is φ = 112292880.

The previous prime is 115100231. The next prime is 115100261. The reversal of 115100243 is 342001511.

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 115100243 - 2¹⁰ = 115099219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115100213) 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, 1403621 + ... + 1403702.

It is an arithmetic number, because the mean of its divisors is an integer number (29476902).

Almost surely, 2^115100243 is an apocalyptic number.

115100243 is a deficient number, since it is larger than the sum of its proper divisors (2807365).

115100243 is an equidigital number, since it uses as much as digits as its factorization.

115100243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807364.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 115100243 is about 10728.4781306577. The cubic root of 115100243 is about 486.4356694968.

Adding to 115100243 its reverse (342001511), we get a palindrome (457101754).

The spelling of 115100243 in words is "one hundred fifteen million, one hundred thousand, two hundred forty-three".