245445103 has 4 divisors (see below), whose sum is σ = 245982640. Its totient is φ = 244907568.

The previous prime is 245445089. The next prime is 245445107. The reversal of 245445103 is 301544542.

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 245445103 - 2¹³ = 245436911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245445107) 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, 268083 + ... + 268996.

It is an arithmetic number, because the mean of its divisors is an integer number (61495660).

Almost surely, 2^245445103 is an apocalyptic number.

245445103 is a deficient number, since it is larger than the sum of its proper divisors (537537).

245445103 is an equidigital number, since it uses as much as digits as its factorization.

245445103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537536.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 245445103 is about 15666.6876843831. The cubic root of 245445103 is about 626.1111778433. Note that the first 4 decimals are identical.

Adding to 245445103 its reverse (301544542), we get a palindrome (546989645).

The spelling of 245445103 in words is "two hundred forty-five million, four hundred forty-five thousand, one hundred three".