1273604275145 has 16 divisors (see below), whose sum is σ = 1608829654080. Its totient is φ = 965218161600.

The previous prime is 1273604275121. The next prime is 1273604275159. The reversal of 1273604275145 is 5415724063721.

It is not a de Polignac number, because 1273604275145 - 2⁸ = 1273604274889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1273604275145.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2150255 + ... + 2677835.

It is an arithmetic number, because the mean of its divisors is an integer number (100551853380).

Almost surely, 2^{1273604275145} is an apocalyptic number.

It is an amenable number.

1273604275145 is a deficient number, since it is larger than the sum of its proper divisors (335225378935).

1273604275145 is a wasteful number, since it uses less digits than its factorization.

1273604275145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553016.

The product of its (nonzero) digits is 1411200, while the sum is 47.

The spelling of 1273604275145 in words is "one trillion, two hundred seventy-three billion, six hundred four million, two hundred seventy-five thousand, one hundred forty-five".