116985081 has 4 divisors (see below), whose sum is σ = 155980112. Its totient is φ = 77990052.

The previous prime is 116985079. The next prime is 116985091. The reversal of 116985081 is 180589611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 116985081 - 2¹ = 116985079 is a prime.

It is a super-2 number, since 2×116985081² = 27371018353153122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116985091) 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, 19497511 + ... + 19497516.

It is an arithmetic number, because the mean of its divisors is an integer number (38995028).

Almost surely, 2^116985081 is an apocalyptic number.

It is an amenable number.

116985081 is a deficient number, since it is larger than the sum of its proper divisors (38995031).

116985081 is an equidigital number, since it uses as much as digits as its factorization.

116985081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38995030.

The product of its (nonzero) digits is 17280, while the sum is 39.

The square root of 116985081 is about 10815.9641733874. The cubic root of 116985081 is about 489.0765350407.

The spelling of 116985081 in words is "one hundred sixteen million, nine hundred eighty-five thousand, eighty-one".