8138158 has 16 divisors (see below), whose sum is σ = 14081760. Its totient is φ = 3455136.

The previous prime is 8138149. The next prime is 8138197. The reversal of 8138158 is 8518318.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1141 + ... + 4192.

It is an arithmetic number, because the mean of its divisors is an integer number (880110).

Almost surely, 2^8138158 is an apocalyptic number.

8138158 is a deficient number, since it is larger than the sum of its proper divisors (5943602).

8138158 is a wasteful number, since it uses less digits than its factorization.

8138158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5451.

The product of its digits is 7680, while the sum is 34.

The square root of 8138158 is about 2852.7456949402. The cubic root of 8138158 is about 201.1447518811.

The spelling of 8138158 in words is "eight million, one hundred thirty-eight thousand, one hundred fifty-eight".