245115620 has 12 divisors (see below), whose sum is σ = 514742844. Its totient is φ = 98046240.

The previous prime is 245115617. The next prime is 245115631. The reversal of 245115620 is 26511542.

245115620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 139806976 + 105308644 = 11824^2 + 10262^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 245115620.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6127871 + ... + 6127910.

It is an arithmetic number, because the mean of its divisors is an integer number (42895237).

Almost surely, 2^245115620 is an apocalyptic number.

245115620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245115620 is an abundant number, since it is smaller than the sum of its proper divisors (269627224).

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

245115620 is a wasteful number, since it uses less digits than its factorization.

245115620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12255790 (or 12255788 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 245115620 is about 15656.1687522842. The cubic root of 245115620 is about 625.8308906370.

The spelling of 245115620 in words is "two hundred forty-five million, one hundred fifteen thousand, six hundred twenty".