1163117272 has 32 divisors (see below), whose sum is σ = 2299115520. Its totient is φ = 550818720.

The previous prime is 1163117261. The next prime is 1163117299. The reversal of 1163117272 is 2727113611.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 38238 + ... + 61549.

It is an arithmetic number, because the mean of its divisors is an integer number (71847360).

Almost surely, 2^1163117272 is an apocalyptic number.

It is an amenable number.

1163117272 is a deficient number, since it is larger than the sum of its proper divisors (1135998248).

1163117272 is a wasteful number, since it uses less digits than its factorization.

1163117272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99871 (or 99867 counting only the distinct ones).

The product of its digits is 3528, while the sum is 31.

The square root of 1163117272 is about 34104.5051569437. The cubic root of 1163117272 is about 1051.6579316463.

The spelling of 1163117272 in words is "one billion, one hundred sixty-three million, one hundred seventeen thousand, two hundred seventy-two".