8245181 has 6 divisors (see below), whose sum is σ = 9591390. Its totient is φ = 7067256.

The previous prime is 8245177. The next prime is 8245199. The reversal of 8245181 is 1815428.

8245181 = 160² + 161² + ... + 306².

8245181 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8236900 + 8281 = 2870^2 + 91^2 .

It is not a de Polignac number, because 8245181 - 2² = 8245177 is a prime.

It is a super-2 number, since 2×8245181² = 135966019445522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8245481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84086 + ... + 84183.

It is an arithmetic number, because the mean of its divisors is an integer number (1598565).

Almost surely, 2^8245181 is an apocalyptic number.

It is an amenable number.

8245181 is a deficient number, since it is larger than the sum of its proper divisors (1346209).

8245181 is a wasteful number, since it uses less digits than its factorization.

8245181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168283 (or 168276 counting only the distinct ones).

The product of its digits is 2560, while the sum is 29.

The square root of 8245181 is about 2871.4423205072. The cubic root of 8245181 is about 202.0226504680.

The spelling of 8245181 in words is "eight million, two hundred forty-five thousand, one hundred eighty-one".