8138136 has 48 divisors (see below), whose sum is σ = 21301560. Its totient is φ = 2590720.

The previous prime is 8138129. The next prime is 8138149. The reversal of 8138136 is 6318318.

8138136 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12376 + ... + 13016.

Almost surely, 2^8138136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8138136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10650780).

8138136 is an abundant number, since it is smaller than the sum of its proper divisors (13163424).

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

8138136 is a wasteful number, since it uses less digits than its factorization.

8138136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696 (or 669 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 8138136 is about 2852.7418390033. The cubic root of 8138136 is about 201.1445706284.

The spelling of 8138136 in words is "eight million, one hundred thirty-eight thousand, one hundred thirty-six".