1125105443 has 8 divisors (see below), whose sum is σ = 1402728960. Its totient is φ = 876705480.

The previous prime is 1125105437. The next prime is 1125105461. The reversal of 1125105443 is 3445015211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1125105443 - 2⁴ = 1125105427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125105433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7305803 + ... + 7305956.

It is an arithmetic number, because the mean of its divisors is an integer number (175341120).

Almost surely, 2^1125105443 is an apocalyptic number.

1125105443 is a deficient number, since it is larger than the sum of its proper divisors (277623517).

1125105443 is a wasteful number, since it uses less digits than its factorization.

1125105443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14611777.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1125105443 is about 33542.5914771056. The cubic root of 1125105443 is about 1040.0744038854.

The spelling of 1125105443 in words is "one billion, one hundred twenty-five million, one hundred five thousand, four hundred forty-three".