81014741 has 4 divisors (see below), whose sum is σ = 85780332. Its totient is φ = 76249152.

The previous prime is 81014663. The next prime is 81014767. The reversal of 81014741 is 14741018.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14741018 = 2 ⋅7370509.

It can be written as a sum of positive squares in 2 ways, for example, as 73034116 + 7980625 = 8546^2 + 2825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-81014741 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 81014741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81014641) 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, 2382770 + ... + 2382803.

It is an arithmetic number, because the mean of its divisors is an integer number (21445083).

Almost surely, 2^81014741 is an apocalyptic number.

It is an amenable number.

81014741 is a deficient number, since it is larger than the sum of its proper divisors (4765591).

81014741 is a wasteful number, since it uses less digits than its factorization.

81014741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4765590.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 81014741 is about 9000.8189071884. The cubic root of 81014741 is about 432.7011166618.

Adding to 81014741 its reverse (14741018), we get a palindrome (95755759).

It can be divided in two parts, 810 and 14741, that added together give a palindrome (15551).

The spelling of 81014741 in words is "eighty-one million, fourteen thousand, seven hundred forty-one".