1305130532 has 24 divisors (see below), whose sum is σ = 2366000280. Its totient is φ = 629488640.

The previous prime is 1305130531. The next prime is 1305130549. The reversal of 1305130532 is 2350315031.

It can be written as a sum of positive squares in 4 ways, for example, as 132342016 + 1172788516 = 11504^2 + 34246^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1305130498 and 1305130507.

It is not an unprimeable number, because it can be changed into a prime (1305130531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30113 + ... + 59304.

It is an arithmetic number, because the mean of its divisors is an integer number (98583345).

Almost surely, 2^1305130532 is an apocalyptic number.

It is an amenable number.

1305130532 is a deficient number, since it is larger than the sum of its proper divisors (1060869748).

1305130532 is a wasteful number, since it uses less digits than its factorization.

1305130532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89551 (or 89549 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 1305130532 is about 36126.5903732971. The cubic root of 1305130532 is about 1092.8267487166.

Adding to 1305130532 its reverse (2350315031), we get a palindrome (3655445563).

The spelling of 1305130532 in words is "one billion, three hundred five million, one hundred thirty thousand, five hundred thirty-two".