1305540616 has 48 divisors (see below), whose sum is σ = 2620304640. Its totient is φ = 609608160.

The previous prime is 1305540563. The next prime is 1305540623. The reversal of 1305540616 is 6160455031.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201865 + ... + 208231.

It is an arithmetic number, because the mean of its divisors is an integer number (54589680).

Almost surely, 2^1305540616 is an apocalyptic number.

It is an amenable number.

1305540616 is an abundant number, since it is smaller than the sum of its proper divisors (1314764024).

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

1305540616 is a wasteful number, since it uses less digits than its factorization.

1305540616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6482 (or 6459 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 1305540616 is about 36132.2655807797. The cubic root of 1305540616 is about 1092.9411954645.

Adding to 1305540616 its reverse (6160455031), we get a palindrome (7465995647).

The spelling of 1305540616 in words is "one billion, three hundred five million, five hundred forty thousand, six hundred sixteen".