8166481 has 4 divisors (see below), whose sum is σ = 8230912. Its totient is φ = 8102052.

The previous prime is 8166469. The next prime is 8166553. The reversal of 8166481 is 1846618.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1846618 = 2 ⋅923309.

It is a cyclic number.

It is not a de Polignac number, because 8166481 - 2¹³ = 8158289 is a prime.

It is a super-2 number, since 2×8166481² = 133382823846722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8166401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32025 + ... + 32278.

It is an arithmetic number, because the mean of its divisors is an integer number (2057728).

Almost surely, 2^8166481 is an apocalyptic number.

It is an amenable number.

8166481 is a deficient number, since it is larger than the sum of its proper divisors (64431).

8166481 is a wasteful number, since it uses less digits than its factorization.

8166481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64430.

The product of its digits is 9216, while the sum is 34.

The square root of 8166481 is about 2857.7055481627. The cubic root of 8166481 is about 201.3778278218.

The spelling of 8166481 in words is "eight million, one hundred sixty-six thousand, four hundred eighty-one".