1172788516 has 9 divisors (see below), whose sum is σ = 2052499771. Its totient is φ = 586360012.

The previous prime is 1172788483. The next prime is 1172788517. The reversal of 1172788516 is 6158872711.

The square root of 1172788516 is 34246.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×1172788516² = 2750865806522964512, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1172788517) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 59931 + ... + 77053.

Almost surely, 2^1172788516 is an apocalyptic number.

1172788516 is the 34246-th square number.

It is an amenable number.

1172788516 is a deficient number, since it is larger than the sum of its proper divisors (879711255).

1172788516 is an frugal number, since it uses more digits than its factorization.

1172788516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34250 (or 17125 counting only the distinct ones).

The product of its digits is 188160, while the sum is 46.

The cubic root of 1172788516 is about 1054.5647122010.

The spelling of 1172788516 in words is "one billion, one hundred seventy-two million, seven hundred eighty-eight thousand, five hundred sixteen".