1305542513 has 8 divisors (see below), whose sum is σ = 1440231840. Its totient is φ = 1173520480.

The previous prime is 1305542507. The next prime is 1305542543. The reversal of 1305542513 is 3152455031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1305542513 - 2¹² = 1305538417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1305542543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665795 + ... + 667752.

It is an arithmetic number, because the mean of its divisors is an integer number (180028980).

Almost surely, 2^1305542513 is an apocalyptic number.

It is an amenable number.

1305542513 is a deficient number, since it is larger than the sum of its proper divisors (134689327).

1305542513 is a wasteful number, since it uses less digits than its factorization.

1305542513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333647.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1305542513 is about 36132.2918315459. The cubic root of 1305542513 is about 1092.9417248259.

Adding to 1305542513 its reverse (3152455031), we get a palindrome (4457997544).

The spelling of 1305542513 in words is "one billion, three hundred five million, five hundred forty-two thousand, five hundred thirteen".