1305242545136 has 10 divisors (see below), whose sum is σ = 2528907431232. Its totient is φ = 652621272560.

The previous prime is 1305242545133. The next prime is 1305242545157. The reversal of 1305242545136 is 6315452425031.

It is a junction number, because it is equal to n+sod(n) for n = 1305242545093 and 1305242545102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305242545133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40788829520 + ... + 40788829551.

Almost surely, 2^{1305242545136} is an apocalyptic number.

1305242545136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1305242545136 is a deficient number, since it is larger than the sum of its proper divisors (1223664886096).

1305242545136 is an equidigital number, since it uses as much as digits as its factorization.

1305242545136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81577659079 (or 81577659073 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 1305242545136 in words is "one trillion, three hundred five billion, two hundred forty-two million, five hundred forty-five thousand, one hundred thirty-six".