8135139 has 8 divisors (see below), whose sum is σ = 10861312. Its totient is φ = 5416200.

The previous prime is 8135137. The next prime is 8135147. The reversal of 8135139 is 9315318.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8135139 - 2¹ = 8135137 is a prime.

It is a Duffinian number.

8135139 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8135131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1914 + ... + 4464.

It is an arithmetic number, because the mean of its divisors is an integer number (1357664).

Almost surely, 2^8135139 is an apocalyptic number.

8135139 is a deficient number, since it is larger than the sum of its proper divisors (2726173).

8135139 is a wasteful number, since it uses less digits than its factorization.

8135139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3617.

The product of its digits is 3240, while the sum is 30.

The square root of 8135139 is about 2852.2165065086. The cubic root of 8135139 is about 201.1198760180.

The spelling of 8135139 in words is "eight million, one hundred thirty-five thousand, one hundred thirty-nine".