245152440140 has 24 divisors (see below), whose sum is σ = 515536176960. Its totient is φ = 97924585088.

The previous prime is 245152440097. The next prime is 245152440179. The reversal of 245152440140 is 41044251542.

245152440140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 245152440097 and 245152440106.

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 7 ways as a sum of consecutive naturals, for example, 8509697 + ... + 8538456.

It is an arithmetic number, because the mean of its divisors is an integer number (21480674040).

Almost surely, 2^245152440140 is an apocalyptic number.

245152440140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245152440140 is an abundant number, since it is smaller than the sum of its proper divisors (270383736820).

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

245152440140 is a wasteful number, since it uses less digits than its factorization.

245152440140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17048881 (or 17048879 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 245152440140 its reverse (41044251542), we get a palindrome (286196691682).

The spelling of 245152440140 in words is "two hundred forty-five billion, one hundred fifty-two million, four hundred forty thousand, one hundred forty".