1163120156 has 24 divisors (see below), whose sum is σ = 2230051824. Its totient is φ = 526417280.

The previous prime is 1163120129. The next prime is 1163120177. The reversal of 1163120156 is 6510213611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46475 + ... + 66978.

It is an arithmetic number, because the mean of its divisors is an integer number (92918826).

Almost surely, 2^1163120156 is an apocalyptic number.

It is an amenable number.

1163120156 is a deficient number, since it is larger than the sum of its proper divisors (1066931668).

1163120156 is a wasteful number, since it uses less digits than its factorization.

1163120156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113701 (or 113699 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1163120156 is about 34104.5474387214. The cubic root of 1163120156 is about 1051.6588008562.

Adding to 1163120156 its reverse (6510213611), we get a palindrome (7673333767).

The spelling of 1163120156 in words is "one billion, one hundred sixty-three million, one hundred twenty thousand, one hundred fifty-six".