1245545402405 has 32 divisors (see below), whose sum is σ = 1515137768064. Its totient is φ = 982872948736.

The previous prime is 1245545402371. The next prime is 1245545402441. The reversal of 1245545402405 is 5042045455421.

It is a cyclic number.

It is not a de Polignac number, because 1245545402405 - 2⁶ = 1245545402341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189779654 + ... + 189786216.

It is an arithmetic number, because the mean of its divisors is an integer number (47348055252).

Almost surely, 2^{1245545402405} is an apocalyptic number.

It is an amenable number.

1245545402405 is a deficient number, since it is larger than the sum of its proper divisors (269592365659).

1245545402405 is a wasteful number, since it uses less digits than its factorization.

1245545402405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8245.

The product of its (nonzero) digits is 640000, while the sum is 41.

The spelling of 1245545402405 in words is "one trillion, two hundred forty-five billion, five hundred forty-five million, four hundred two thousand, four hundred five".