1305536564 has 12 divisors (see below), whose sum is σ = 2346437604. Its totient is φ = 635125824.

The previous prime is 1305536563. The next prime is 1305536597. The reversal of 1305536564 is 4656355031.

It can be written as a sum of positive squares in 2 ways, for example, as 948024100 + 357512464 = 30790^2 + 18908^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305536563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4410449 + ... + 4410744.

It is an arithmetic number, because the mean of its divisors is an integer number (195536467).

Almost surely, 2^1305536564 is an apocalyptic number.

It is an amenable number.

1305536564 is a deficient number, since it is larger than the sum of its proper divisors (1040901040).

1305536564 is a wasteful number, since it uses less digits than its factorization.

1305536564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8821234 (or 8821232 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 38.

The square root of 1305536564 is about 36132.2095089686. The cubic root of 1305536564 is about 1092.9400647446.

The spelling of 1305536564 in words is "one billion, three hundred five million, five hundred thirty-six thousand, five hundred sixty-four".