1125844079 has 4 divisors (see below), whose sum is σ = 1126110384. Its totient is φ = 1125577776.

The previous prime is 1125844021. The next prime is 1125844087. The reversal of 1125844079 is 9704485211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9704485211 = 39227 ⋅247393.

It is a cyclic number.

It is not a de Polignac number, because 1125844079 - 2¹⁶ = 1125778543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125844099) 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, 126707 + ... + 135300.

It is an arithmetic number, because the mean of its divisors is an integer number (281527596).

Almost surely, 2^1125844079 is an apocalyptic number.

1125844079 is a deficient number, since it is larger than the sum of its proper divisors (266305).

1125844079 is an equidigital number, since it uses as much as digits as its factorization.

1125844079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266304.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 1125844079 is about 33553.6000900052. The cubic root of 1125844079 is about 1040.3019583624.

The spelling of 1125844079 in words is "one billion, one hundred twenty-five million, eight hundred forty-four thousand, seventy-nine".