81064353 has 4 divisors (see below), whose sum is σ = 108085808. Its totient is φ = 54042900.

The previous prime is 81064307. The next prime is 81064369. The reversal of 81064353 is 35346018.

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 not a de Polignac number, because 81064353 - 2⁸ = 81064097 is a prime.

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 81064353.

It is not an unprimeable number, because it can be changed into a prime (81064153) 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 3 ways as a sum of consecutive naturals, for example, 13510723 + ... + 13510728.

It is an arithmetic number, because the mean of its divisors is an integer number (27021452).

Almost surely, 2^81064353 is an apocalyptic number.

It is an amenable number.

81064353 is a deficient number, since it is larger than the sum of its proper divisors (27021455).

81064353 is a wasteful number, since it uses less digits than its factorization.

81064353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27021454.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 81064353 is about 9003.5744568477. The cubic root of 81064353 is about 432.7894248182.

The spelling of 81064353 in words is "eighty-one million, sixty-four thousand, three hundred fifty-three".