64074081 has 4 divisors (see below), whose sum is σ = 85432112. Its totient is φ = 42716052.

The previous prime is 64074077. The next prime is 64074149. The reversal of 64074081 is 18047046.

64074081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 64074081 - 2² = 64074077 is a prime.

It is a super-2 number, since 2×64074081² = 8210975711989122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64074001) 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, 10679011 + ... + 10679016.

It is an arithmetic number, because the mean of its divisors is an integer number (21358028).

Almost surely, 2^64074081 is an apocalyptic number.

It is an amenable number.

64074081 is a deficient number, since it is larger than the sum of its proper divisors (21358031).

64074081 is a wasteful number, since it uses less digits than its factorization.

64074081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21358030.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 64074081 is about 8004.6287234325. The cubic root of 64074081 is about 400.1542759064.

The spelling of 64074081 in words is "sixty-four million, seventy-four thousand, eighty-one".