1193128645 has 8 divisors (see below), whose sum is σ = 1445135904. Its totient is φ = 945581904.

The previous prime is 1193128631. The next prime is 1193128649. The reversal of 1193128645 is 5468213911.

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 1193128645 - 2¹⁵ = 1193095877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1193128598 and 1193128607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1193128649) 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, 1114539 + ... + 1115608.

It is an arithmetic number, because the mean of its divisors is an integer number (180641988).

Almost surely, 2^1193128645 is an apocalyptic number.

It is an amenable number.

1193128645 is a deficient number, since it is larger than the sum of its proper divisors (252007259).

1193128645 is a wasteful number, since it uses less digits than its factorization.

1193128645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230259.

The product of its digits is 51840, while the sum is 40.

The square root of 1193128645 is about 34541.6942983404. The cubic root of 1193128645 is about 1060.6263786284.

The spelling of 1193128645 in words is "one billion, one hundred ninety-three million, one hundred twenty-eight thousand, six hundred forty-five".