1307120528 has 20 divisors (see below), whose sum is σ = 2894338560. Its totient is φ = 560194464.

The previous prime is 1307120473. The next prime is 1307120537. The reversal of 1307120528 is 8250217031.

It is a self number, because there is not a number n which added to its sum of digits gives 1307120528.

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, 5835248 + ... + 5835471.

It is an arithmetic number, because the mean of its divisors is an integer number (144716928).

Almost surely, 2^1307120528 is an apocalyptic number.

It is an amenable number.

1307120528 is an abundant number, since it is smaller than the sum of its proper divisors (1587218032).

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

1307120528 is a wasteful number, since it uses less digits than its factorization.

1307120528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11670734 (or 11670728 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1307120528 is about 36154.1218673611. The cubic root of 1307120528 is about 1093.3818953577.

Adding to 1307120528 its reverse (8250217031), we get a palindrome (9557337559).

The spelling of 1307120528 in words is "one billion, three hundred seven million, one hundred twenty thousand, five hundred twenty-eight".