1193147923 has 4 divisors (see below), whose sum is σ = 1301615928. Its totient is φ = 1084679920.

The previous prime is 1193147881. The next prime is 1193147927. The reversal of 1193147923 is 3297413911.

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 1193147923 - 2⁹ = 1193147411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1193147927) 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, 54233986 + ... + 54234007.

It is an arithmetic number, because the mean of its divisors is an integer number (325403982).

Almost surely, 2^1193147923 is an apocalyptic number.

1193147923 is a deficient number, since it is larger than the sum of its proper divisors (108468005).

1193147923 is a wasteful number, since it uses less digits than its factorization.

1193147923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108468004.

The product of its digits is 40824, while the sum is 40.

The square root of 1193147923 is about 34541.9733512722. The cubic root of 1193147923 is about 1060.6320909616.

The spelling of 1193147923 in words is "one billion, one hundred ninety-three million, one hundred forty-seven thousand, nine hundred twenty-three".