8381146 has 4 divisors (see below), whose sum is σ = 12571722. Its totient is φ = 4190572.

The previous prime is 8381143. The next prime is 8381159. The reversal of 8381146 is 6411838.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6411838 = 2 ⋅3205919.

It can be written as a sum of positive squares in only one way, i.e., 8381025 + 121 = 2895^2 + 11^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (8381143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2095285 + ... + 2095288.

Almost surely, 2^8381146 is an apocalyptic number.

8381146 is a deficient number, since it is larger than the sum of its proper divisors (4190576).

8381146 is a wasteful number, since it uses less digits than its factorization.

8381146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190575.

The product of its digits is 4608, while the sum is 31.

The square root of 8381146 is about 2895.0208980247. The cubic root of 8381146 is about 203.1270690440.

The spelling of 8381146 in words is "eight million, three hundred eighty-one thousand, one hundred forty-six".