245122505403 has 4 divisors (see below), whose sum is σ = 326830007208. Its totient is φ = 163415003600.

The previous prime is 245122505389. The next prime is 245122505461. The reversal of 245122505403 is 304505221542.

It is a happy number.

245122505403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 245122505403 - 2⁶ = 245122505339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245122505503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40853750898 + ... + 40853750903.

It is an arithmetic number, because the mean of its divisors is an integer number (81707501802).

Almost surely, 2^245122505403 is an apocalyptic number.

245122505403 is a deficient number, since it is larger than the sum of its proper divisors (81707501805).

245122505403 is an equidigital number, since it uses as much as digits as its factorization.

245122505403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81707501804.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 245122505403 its reverse (304505221542), we get a palindrome (549627726945).

The spelling of 245122505403 in words is "two hundred forty-five billion, one hundred twenty-two million, five hundred five thousand, four hundred three".