1305135015439 has 16 divisors (see below), whose sum is σ = 1390012766208. Its totient is φ = 1221177036672.

The previous prime is 1305135015413. The next prime is 1305135015511. The reversal of 1305135015439 is 9345105315031.

It is a cyclic number.

It is not a de Polignac number, because 1305135015439 - 2¹³ = 1305135007247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305135715439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1877674 + ... + 2477080.

It is an arithmetic number, because the mean of its divisors is an integer number (86875797888).

Almost surely, 2^{1305135015439} is an apocalyptic number.

1305135015439 is a deficient number, since it is larger than the sum of its proper divisors (84877750769).

1305135015439 is a wasteful number, since it uses less digits than its factorization.

1305135015439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600174.

The product of its (nonzero) digits is 121500, while the sum is 40.

The spelling of 1305135015439 in words is "one trillion, three hundred five billion, one hundred thirty-five million, fifteen thousand, four hundred thirty-nine".