994871081 has 8 divisors (see below), whose sum is σ = 1004169600. Its totient is φ = 985614480.

The previous prime is 994871077. The next prime is 994871153. The reversal of 994871081 is 180178499.

994871081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 994871081 - 2² = 994871077 is a prime.

It is a super-2 number, since 2×994871081² = 1979536935620217122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (994871011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38255 + ... + 58763.

It is an arithmetic number, because the mean of its divisors is an integer number (125521200).

Almost surely, 2^994871081 is an apocalyptic number.

It is an amenable number.

994871081 is a deficient number, since it is larger than the sum of its proper divisors (9298519).

994871081 is a wasteful number, since it uses less digits than its factorization.

994871081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20959.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 994871081 is about 31541.5770214490. The cubic root of 994871081 is about 998.2874291085.

The spelling of 994871081 in words is "nine hundred ninety-four million, eight hundred seventy-one thousand, eighty-one".