8180645 has 16 divisors (see below), whose sum is σ = 10895040. Its totient is φ = 5846400.

The previous prime is 8180611. The next prime is 8180671. The reversal of 8180645 is 5460818.

It is not a de Polignac number, because 8180645 - 2¹⁰ = 8179621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1985 + ... + 4505.

It is an arithmetic number, because the mean of its divisors is an integer number (680940).

Almost surely, 2^8180645 is an apocalyptic number.

It is an amenable number.

8180645 is a deficient number, since it is larger than the sum of its proper divisors (2714395).

8180645 is a wasteful number, since it uses less digits than its factorization.

8180645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 8180645 is about 2860.1826864730. The cubic root of 8180645 is about 201.4941842677.

The spelling of 8180645 in words is "eight million, one hundred eighty thousand, six hundred forty-five".