81294411 has 8 divisors (see below), whose sum is σ = 118246464. Its totient is φ = 49269320.

The previous prime is 81294401. The next prime is 81294413. The reversal of 81294411 is 11449218.

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 81294411 - 2⁹ = 81293899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (81294413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1231701 + ... + 1231766.

It is an arithmetic number, because the mean of its divisors is an integer number (14780808).

Almost surely, 2^81294411 is an apocalyptic number.

81294411 is a deficient number, since it is larger than the sum of its proper divisors (36952053).

81294411 is a wasteful number, since it uses less digits than its factorization.

81294411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463481.

The product of its digits is 2304, while the sum is 30.

The square root of 81294411 is about 9016.3413311609. The cubic root of 81294411 is about 433.1984522350.

It can be divided in two parts, 81 and 294411, that added together give a palindrome (294492).

The spelling of 81294411 in words is "eighty-one million, two hundred ninety-four thousand, four hundred eleven".