1305456644252 has 6 divisors (see below), whose sum is σ = 2284549127448. Its totient is φ = 652728322124.

The previous prime is 1305456644251. The next prime is 1305456644269. The reversal of 1305456644252 is 2524466545031.

It is a junction number, because it is equal to n+sod(n) for n = 1305456644197 and 1305456644206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305456644251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163182080528 + ... + 163182080535.

It is an arithmetic number, because the mean of its divisors is an integer number (380758187908).

Almost surely, 2^{1305456644252} is an apocalyptic number.

It is an amenable number.

1305456644252 is a deficient number, since it is larger than the sum of its proper divisors (979092483196).

1305456644252 is a wasteful number, since it uses less digits than its factorization.

1305456644252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326364161067 (or 326364161065 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 47.

The spelling of 1305456644252 in words is "one trillion, three hundred five billion, four hundred fifty-six million, six hundred forty-four thousand, two hundred fifty-two".