1305631033449 has 12 divisors (see below), whose sum is σ = 1849267485744. Its totient is φ = 819219471424.

The previous prime is 1305631033423. The next prime is 1305631033463. The reversal of 1305631033449 is 9443301365031.

It is not a de Polignac number, because 1305631033449 - 2¹⁷ = 1305630902377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1305631033449.

It is not an unprimeable number, because it can be changed into a prime (1305631033549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 752958207 + ... + 752959940.

It is an arithmetic number, because the mean of its divisors is an integer number (154105623812).

Almost surely, 2^{1305631033449} is an apocalyptic number.

It is an amenable number.

1305631033449 is a deficient number, since it is larger than the sum of its proper divisors (543636452295).

1305631033449 is a wasteful number, since it uses less digits than its factorization.

1305631033449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505918184 (or 1505918167 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 42.

The spelling of 1305631033449 in words is "one trillion, three hundred five billion, six hundred thirty-one million, thirty-three thousand, four hundred forty-nine".