1133087681 has 24 divisors (see below), whose sum is σ = 1298361960. Its totient is φ = 986881280.

The previous prime is 1133087671. The next prime is 1133087699. The reversal of 1133087681 is 1867803311.

It can be written as a sum of positive squares in 4 ways, for example, as 84364225 + 1048723456 = 9185^2 + 32384^2 .

It is not a de Polignac number, because 1133087681 - 2²⁶ = 1065978817 is a prime.

It is a super-2 number, since 2×1133087681² = 2567775385667915522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133087671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 479555 + ... + 481911.

It is an arithmetic number, because the mean of its divisors is an integer number (54098415).

Almost surely, 2^1133087681 is an apocalyptic number.

1133087681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1133087681 is a deficient number, since it is larger than the sum of its proper divisors (165274279).

1133087681 is a wasteful number, since it uses less digits than its factorization.

1133087681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545 (or 2534 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1133087681 is about 33661.3677826674. The cubic root of 1133087681 is about 1042.5282671899.

The spelling of 1133087681 in words is "one billion, one hundred thirty-three million, eighty-seven thousand, six hundred eighty-one".