1191312796 has 12 divisors (see below), whose sum is σ = 2115914248. Its totient is φ = 586765872.

The previous prime is 1191312767. The next prime is 1191312799. The reversal of 1191312796 is 6972131911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1191312799) 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, 2222331 + ... + 2222866.

Almost surely, 2^1191312796 is an apocalyptic number.

It is an amenable number.

1191312796 is a deficient number, since it is larger than the sum of its proper divisors (924601452).

1191312796 is a wasteful number, since it uses less digits than its factorization.

1191312796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4445268 (or 4445266 counting only the distinct ones).

The product of its digits is 20412, while the sum is 40.

The square root of 1191312796 is about 34515.3994037444. The cubic root of 1191312796 is about 1060.0880418150.

The spelling of 1191312796 in words is "one billion, one hundred ninety-one million, three hundred twelve thousand, seven hundred ninety-six".