1117054881 has 20 divisors (see below), whose sum is σ = 1709391684. Its totient is φ = 726537600.

The previous prime is 1117054787. The next prime is 1117054909. The reversal of 1117054881 is 1884507111.

1117054881 is a `hidden beast` number, since 1 + 1 + 170 + 5 + 488 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 364046400 + 753008481 = 19080^2 + 27441^2 .

It is not a de Polignac number, because 1117054881 - 2¹⁷ = 1116923809 is a prime.

It is a super-2 number, since 2×1117054881² = 2495623214331848322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1117054681) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 164860 + ... + 171501.

Almost surely, 2^1117054881 is an apocalyptic number.

It is an amenable number.

1117054881 is a deficient number, since it is larger than the sum of its proper divisors (592336803).

1117054881 is an equidigital number, since it uses as much as digits as its factorization.

1117054881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336414 (or 336405 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 36.

The square root of 1117054881 is about 33422.3709661658. The cubic root of 1117054881 is about 1037.5877526976.

The spelling of 1117054881 in words is "one billion, one hundred seventeen million, fifty-four thousand, eight hundred eighty-one".