8146138 has 48 divisors (see below), whose sum is σ = 16549056. Its totient is φ = 2920320.

The previous prime is 8146133. The next prime is 8146169. The reversal of 8146138 is 8316418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8146133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25870 + ... + 26182.

It is an arithmetic number, because the mean of its divisors is an integer number (344772).

Almost surely, 2^8146138 is an apocalyptic number.

8146138 is an abundant number, since it is smaller than the sum of its proper divisors (8402918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8146138 is a wasteful number, since it uses less digits than its factorization.

8146138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 346 counting only the distinct ones).

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

The square root of 8146138 is about 2854.1440047762. The cubic root of 8146138 is about 201.2104756300.

The spelling of 8146138 in words is "eight million, one hundred forty-six thousand, one hundred thirty-eight".