1125265645535 has 4 divisors (see below), whose sum is σ = 1350318774648. Its totient is φ = 900212516424.

The previous prime is 1125265645529. The next prime is 1125265645577. The reversal of 1125265645535 is 5355465625211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1125265645535 - 2¹² = 1125265641439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112526564549 + ... + 112526564558.

It is an arithmetic number, because the mean of its divisors is an integer number (337579693662).

Almost surely, 2^{1125265645535} is an apocalyptic number.

1125265645535 is a deficient number, since it is larger than the sum of its proper divisors (225053129113).

1125265645535 is an equidigital number, since it uses as much as digits as its factorization.

1125265645535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225053129112.

The product of its digits is 5400000, while the sum is 50.

The spelling of 1125265645535 in words is "one trillion, one hundred twenty-five billion, two hundred sixty-five million, six hundred forty-five thousand, five hundred thirty-five".