245103 has 4 divisors (see below), whose sum is σ = 326808. Its totient is φ = 163400.

The previous prime is 245087. The next prime is 245107. The reversal of 245103 is 301542.

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 245103 - 2⁴ = 245087 is a prime.

It is a D-number.

245103 is a lucky number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245107) 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, 40848 + ... + 40853.

It is an arithmetic number, because the mean of its divisors is an integer number (81702).

2²⁴⁵¹⁰³ is an apocalyptic number.

245103 is a deficient number, since it is larger than the sum of its proper divisors (81705).

245103 is an equidigital number, since it uses as much as digits as its factorization.

245103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81704.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 245103 is about 495.0787816096. The cubic root of 245103 is about 62.5820149962.

Adding to 245103 its reverse (301542), we get a palindrome (546645).

The spelling of 245103 in words is "two hundred forty-five thousand, one hundred three".