1116981059 has 4 divisors (see below), whose sum is σ = 1117467120. Its totient is φ = 1116495000.

The previous prime is 1116981043. The next prime is 1116981067. The reversal of 1116981059 is 9501896111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1116981059 - 2⁴ = 1116981043 is a prime.

It is a super-2 number, since 2×1116981059² = 2495293372329522962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1116987059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239567 + ... + 244184.

It is an arithmetic number, because the mean of its divisors is an integer number (279366780).

Almost surely, 2^1116981059 is an apocalyptic number.

1116981059 is a deficient number, since it is larger than the sum of its proper divisors (486061).

1116981059 is an equidigital number, since it uses as much as digits as its factorization.

1116981059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486060.

The product of its (nonzero) digits is 19440, while the sum is 41.

The square root of 1116981059 is about 33421.2665678607. The cubic root of 1116981059 is about 1037.5648954230.

The spelling of 1116981059 in words is "one billion, one hundred sixteen million, nine hundred eighty-one thousand, fifty-nine".