1133617681 has 16 divisors (see below), whose sum is σ = 1395031680. Its totient is φ = 899009280.

The previous prime is 1133617673. The next prime is 1133617687. The reversal of 1133617681 is 1867163311.

It is a cyclic number.

It is not a de Polignac number, because 1133617681 - 2³ = 1133617673 is a prime.

It is a super-2 number, since 2×1133617681² = 2570178093351635522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1133617681.

It is not an unprimeable number, because it can be changed into a prime (1133617687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73710 + ... + 87751.

It is an arithmetic number, because the mean of its divisors is an integer number (87189480).

Almost surely, 2^1133617681 is an apocalyptic number.

It is an amenable number.

1133617681 is a deficient number, since it is larger than the sum of its proper divisors (261413999).

1133617681 is a wasteful number, since it uses less digits than its factorization.

1133617681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161544.

The product of its digits is 18144, while the sum is 37.

The square root of 1133617681 is about 33669.2393884982. The cubic root of 1133617681 is about 1042.6907888445.

The spelling of 1133617681 in words is "one billion, one hundred thirty-three million, six hundred seventeen thousand, six hundred eighty-one".