1125922455689 has 4 divisors (see below), whose sum is σ = 1125925185540. Its totient is φ = 1125919725840.

The previous prime is 1125922455683. The next prime is 1125922455703. The reversal of 1125922455689 is 9865542295211.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 526408291600 + 599514164089 = 725540^2 + 774283^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125922455689 - 2⁴ = 1125922455673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125922455683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605354 + ... + 1618115.

It is an arithmetic number, because the mean of its divisors is an integer number (281481296385).

Almost surely, 2^{1125922455689} is an apocalyptic number.

It is an amenable number.

1125922455689 is a deficient number, since it is larger than the sum of its proper divisors (2729851).

1125922455689 is an equidigital number, since it uses as much as digits as its factorization.

1125922455689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729850.

The product of its digits is 15552000, while the sum is 59.

The spelling of 1125922455689 in words is "one trillion, one hundred twenty-five billion, nine hundred twenty-two million, four hundred fifty-five thousand, six hundred eighty-nine".