245315020140 has 72 divisors (see below), whose sum is σ = 749475701520. Its totient is φ = 64946703744.

The previous prime is 245315020133. The next prime is 245315020163. The reversal of 245315020140 is 41020513542.

245315020140 is a `hidden beast` number, since 2 + 453 + 1 + 5 + 0 + 201 + 4 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4877359 + ... + 4927398.

Almost surely, 2^245315020140 is an apocalyptic number.

245315020140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245315020140 is an abundant number, since it is smaller than the sum of its proper divisors (504160681380).

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

245315020140 is a wasteful number, since it uses less digits than its factorization.

245315020140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9804911 (or 9804906 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 245315020140 its reverse (41020513542), we get a palindrome (286335533682).

The spelling of 245315020140 in words is "two hundred forty-five billion, three hundred fifteen million, twenty thousand, one hundred forty".