1119645993 has 8 divisors (see below), whose sum is σ = 1580676768. Its totient is φ = 702522944.

The previous prime is 1119645977. The next prime is 1119646001. The reversal of 1119645993 is 3995469111.

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

It is a cyclic number.

It is not a de Polignac number, because 1119645993 - 2⁴ = 1119645977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1119645953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10976871 + ... + 10976972.

It is an arithmetic number, because the mean of its divisors is an integer number (197584596).

Almost surely, 2^1119645993 is an apocalyptic number.

It is an amenable number.

1119645993 is a deficient number, since it is larger than the sum of its proper divisors (461030775).

1119645993 is a wasteful number, since it uses less digits than its factorization.

1119645993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21953863.

The product of its digits is 262440, while the sum is 48.

The square root of 1119645993 is about 33461.1116521851. Note that the first 3 decimals coincide. The cubic root of 1119645993 is about 1038.3893934082.

The spelling of 1119645993 in words is "one billion, one hundred nineteen million, six hundred forty-five thousand, nine hundred ninety-three".