245122505454 has 32 divisors (see below), whose sum is σ = 503287110144. Its totient is φ = 79542429120.

The previous prime is 245122505389. The next prime is 245122505461. The reversal of 245122505454 is 454505221542.

245122505454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×245122505454² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 962164 + ... + 1189959.

It is an arithmetic number, because the mean of its divisors is an integer number (15727722192).

Almost surely, 2^245122505454 is an apocalyptic number.

245122505454 is an abundant number, since it is smaller than the sum of its proper divisors (258164604690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245122505454 is a wasteful number, since it uses less digits than its factorization.

245122505454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152632.

The product of its (nonzero) digits is 320000, while the sum is 39.

Adding to 245122505454 its reverse (454505221542), we get a palindrome (699627726996).

The spelling of 245122505454 in words is "two hundred forty-five billion, one hundred twenty-two million, five hundred five thousand, four hundred fifty-four".