115603243 has 16 divisors (see below), whose sum is σ = 134933760. Its totient is φ = 96991776.

The previous prime is 115603223. The next prime is 115603249. The reversal of 115603243 is 342306511.

It is not a de Polignac number, because 115603243 - 2⁵ = 115603211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115603249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130480 + ... + 131362.

It is an arithmetic number, because the mean of its divisors is an integer number (8433360).

Almost surely, 2^115603243 is an apocalyptic number.

115603243 is a deficient number, since it is larger than the sum of its proper divisors (19330517).

115603243 is an equidigital number, since it uses as much as digits as its factorization.

115603243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 115603243 is about 10751.8948562567. The cubic root of 115603243 is about 487.1432312323.

Adding to 115603243 its reverse (342306511), we get a palindrome (457909754).

The spelling of 115603243 in words is "one hundred fifteen million, six hundred three thousand, two hundred forty-three".