81104353 has 4 divisors (see below), whose sum is σ = 88477488. Its totient is φ = 73731220.

The previous prime is 81104249. The next prime is 81104377. The reversal of 81104353 is 35340118.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 81104353 - 2¹⁷ = 80973281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (81104383) 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, 3686551 + ... + 3686572.

It is an arithmetic number, because the mean of its divisors is an integer number (22119372).

Almost surely, 2^81104353 is an apocalyptic number.

It is an amenable number.

81104353 is a deficient number, since it is larger than the sum of its proper divisors (7373135).

81104353 is a wasteful number, since it uses less digits than its factorization.

81104353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7373134.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 81104353 is about 9005.7955228841. The cubic root of 81104353 is about 432.8605976159.

The spelling of 81104353 in words is "eighty-one million, one hundred four thousand, three hundred fifty-three".