245705130 has 64 divisors (see below), whose sum is σ = 714787200. Its totient is φ = 59564160.

The previous prime is 245705129. The next prime is 245705167. The reversal of 245705130 is 31507542.

It is a happy number.

245705130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 245705094 and 245705103.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38395 + ... + 44334.

It is an arithmetic number, because the mean of its divisors is an integer number (11168550).

Almost surely, 2^245705130 is an apocalyptic number.

245705130 is an abundant number, since it is smaller than the sum of its proper divisors (469082070).

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

245705130 is a wasteful number, since it uses less digits than its factorization.

245705130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82756 (or 82750 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 245705130 is about 15674.9842105184. The cubic root of 245705130 is about 626.3322026269.

The spelling of 245705130 in words is "two hundred forty-five million, seven hundred five thousand, one hundred thirty".