814112981 has 8 divisors (see below), whose sum is σ = 893781984. Its totient is φ = 735387120.

The previous prime is 814112977. The next prime is 814112989. The reversal of 814112981 is 189211418.

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 814112981 - 2² = 814112977 is a prime.

It is a super-2 number, since 2×814112981² = 1325559891665412722, 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 (814112989) 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, 233975 + ... + 237428.

It is an arithmetic number, because the mean of its divisors is an integer number (111722748).

Almost surely, 2^814112981 is an apocalyptic number.

It is an amenable number.

814112981 is a deficient number, since it is larger than the sum of its proper divisors (79669003).

814112981 is a wasteful number, since it uses less digits than its factorization.

814112981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471571.

The product of its digits is 4608, while the sum is 35.

The square root of 814112981 is about 28532.6651576750. The cubic root of 814112981 is about 933.7448651024.

The spelling of 814112981 in words is "eight hundred fourteen million, one hundred twelve thousand, nine hundred eighty-one".