8081345 has 4 divisors (see below), whose sum is σ = 9697620. Its totient is φ = 6465072.

The previous prime is 8081323. The next prime is 8081351. The reversal of 8081345 is 5431808.

8081345 is digitally balanced in base 3, 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.

It can be written as a sum of positive squares in 2 ways, for example, as 1201216 + 6880129 = 1096^2 + 2623^2 .

It is a cyclic number.

It is not a de Polignac number, because 8081345 - 2¹⁶ = 8015809 is a prime.

It is a super-3 number, since 3×8081345³ (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808130 + ... + 808139.

It is an arithmetic number, because the mean of its divisors is an integer number (2424405).

Almost surely, 2^8081345 is an apocalyptic number.

It is an amenable number.

8081345 is a deficient number, since it is larger than the sum of its proper divisors (1616275).

8081345 is a wasteful number, since it uses less digits than its factorization.

8081345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616274.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 8081345 is about 2842.7706555401. The cubic root of 8081345 is about 200.6755903190.

The spelling of 8081345 in words is "eight million, eighty-one thousand, three hundred forty-five".