81335110 has 8 divisors (see below), whose sum is σ = 146403216. Its totient is φ = 32534040.

The previous prime is 81335101. The next prime is 81335113. The reversal of 81335110 is 1153318.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81335113) 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, 4066746 + ... + 4066765.

It is an arithmetic number, because the mean of its divisors is an integer number (18300402).

Almost surely, 2^81335110 is an apocalyptic number.

81335110 is a deficient number, since it is larger than the sum of its proper divisors (65068106).

81335110 is a wasteful number, since it uses less digits than its factorization.

81335110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8133518.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 81335110 is about 9018.5980063422. The cubic root of 81335110 is about 433.2707319166.

Adding to 81335110 its reverse (1153318), we get a palindrome (82488428).

The spelling of 81335110 in words is "eighty-one million, three hundred thirty-five thousand, one hundred ten".