243598103 has 4 divisors (see below), whose sum is σ = 278397840. Its totient is φ = 208798368.

The previous prime is 243598099. The next prime is 243598127. The reversal of 243598103 is 301895342.

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 243598103 - 2² = 243598099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243598903) 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, 17399858 + ... + 17399871.

It is an arithmetic number, because the mean of its divisors is an integer number (69599460).

Almost surely, 2^243598103 is an apocalyptic number.

243598103 is a deficient number, since it is larger than the sum of its proper divisors (34799737).

243598103 is an equidigital number, since it uses as much as digits as its factorization.

243598103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34799736.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 243598103 is about 15607.6296406597. The cubic root of 243598103 is about 624.5367045499.

The spelling of 243598103 in words is "two hundred forty-three million, five hundred ninety-eight thousand, one hundred three".