1123194545 has 8 divisors (see below), whose sum is σ = 1470363840. Its totient is φ = 816868720.

The previous prime is 1123194517. The next prime is 1123194617. The reversal of 1123194545 is 5454913211.

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

It is not a de Polignac number, because 1123194545 - 2¹⁰ = 1123193521 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10210805 + ... + 10210914.

It is an arithmetic number, because the mean of its divisors is an integer number (183795480).

Almost surely, 2^1123194545 is an apocalyptic number.

It is an amenable number.

1123194545 is a deficient number, since it is larger than the sum of its proper divisors (347169295).

1123194545 is a wasteful number, since it uses less digits than its factorization.

1123194545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20421735.

The product of its digits is 21600, while the sum is 35.

The square root of 1123194545 is about 33514.0947214750. The cubic root of 1123194545 is about 1039.4852435950.

The spelling of 1123194545 in words is "one billion, one hundred twenty-three million, one hundred ninety-four thousand, five hundred forty-five".