1172788233 has 8 divisors (see below), whose sum is σ = 1572357696. Its totient is φ = 777538800.

The previous prime is 1172788189. The next prime is 1172788247. The reversal of 1172788233 is 3328872711.

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

It is not a de Polignac number, because 1172788233 - 2¹⁴ = 1172771849 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1172788933) 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, 1079373 + ... + 1080458.

It is an arithmetic number, because the mean of its divisors is an integer number (196544712).

Almost surely, 2^1172788233 is an apocalyptic number.

It is an amenable number.

1172788233 is a deficient number, since it is larger than the sum of its proper divisors (399569463).

1172788233 is a wasteful number, since it uses less digits than its factorization.

1172788233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160015.

The product of its digits is 112896, while the sum is 42.

The square root of 1172788233 is about 34245.9958681303. The cubic root of 1172788233 is about 1054.5646273770.

The spelling of 1172788233 in words is "one billion, one hundred seventy-two million, seven hundred eighty-eight thousand, two hundred thirty-three".