245102243 has 4 divisors (see below), whose sum is σ = 259520040. Its totient is φ = 230684448.

The previous prime is 245102239. The next prime is 245102251. The reversal of 245102243 is 342201542.

It is a happy number.

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 245102243 - 2² = 245102239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245102233) 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, 7208873 + ... + 7208906.

It is an arithmetic number, because the mean of its divisors is an integer number (64880010).

Almost surely, 2^245102243 is an apocalyptic number.

245102243 is a deficient number, since it is larger than the sum of its proper divisors (14417797).

245102243 is a wasteful number, since it uses less digits than its factorization.

245102243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14417796.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 245102243 is about 15655.7415346575. The cubic root of 245102243 is about 625.8195056804.

Adding to 245102243 its reverse (342201542), we get a palindrome (587303785).

The spelling of 245102243 in words is "two hundred forty-five million, one hundred two thousand, two hundred forty-three".