8342181 has 12 divisors (see below), whose sum is σ = 12075180. Its totient is φ = 5549760.

The previous prime is 8342179. The next prime is 8342183. The reversal of 8342181 is 1812438.

It is an interprime number because it is at equal distance from previous prime (8342179) and next prime (8342183).

It can be written as a sum of positive squares in 2 ways, for example, as 1404225 + 6937956 = 1185^2 + 2634^2 .

It is not a de Polignac number, because 8342181 - 2¹ = 8342179 is a prime.

It is a super-2 number, since 2×8342181² = 139183967673522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8342183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6825 + ... + 7953.

It is an arithmetic number, because the mean of its divisors is an integer number (1006265).

Almost surely, 2^8342181 is an apocalyptic number.

It is an amenable number.

8342181 is a deficient number, since it is larger than the sum of its proper divisors (3732999).

8342181 is a wasteful number, since it uses less digits than its factorization.

8342181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956 (or 1953 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 8342181 is about 2888.2834002224. The cubic root of 8342181 is about 202.8117922020.

The spelling of 8342181 in words is "eight million, three hundred forty-two thousand, one hundred eighty-one".