1305169138653 has 8 divisors (see below), whose sum is σ = 1740274753728. Its totient is φ = 870088141344.

The previous prime is 1305169138591. The next prime is 1305169138661. The reversal of 1305169138653 is 3568319615031.

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

It is not a de Polignac number, because 1305169138653 - 2¹⁴ = 1305169122269 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1305169138596 and 1305169138605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305169138673) 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, 6030376 + ... + 6243057.

It is an arithmetic number, because the mean of its divisors is an integer number (217534344216).

Almost surely, 2^{1305169138653} is an apocalyptic number.

It is an amenable number.

1305169138653 is a deficient number, since it is larger than the sum of its proper divisors (435105615075).

1305169138653 is a wasteful number, since it uses less digits than its factorization.

1305169138653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12308883.

The product of its (nonzero) digits is 1749600, while the sum is 51.

The spelling of 1305169138653 in words is "one trillion, three hundred five billion, one hundred sixty-nine million, one hundred thirty-eight thousand, six hundred fifty-three".