838135 has 4 divisors (see below), whose sum is σ = 1005768. Its totient is φ = 670504.

The previous prime is 838133. The next prime is 838139. The reversal of 838135 is 531838.

838135 = T₇₄₆ + T₇₄₇ + T₇₄₈.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 838135 - 2¹ = 838133 is a prime.

It is a Duffinian number.

838135 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838133) 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 3 ways as a sum of consecutive naturals, for example, 83809 + ... + 83818.

It is an arithmetic number, because the mean of its divisors is an integer number (251442).

2⁸³⁸¹³⁵ is an apocalyptic number.

838135 is the 748-th centered triangular number.

838135 is a deficient number, since it is larger than the sum of its proper divisors (167633).

838135 is a wasteful number, since it uses less digits than its factorization.

838135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167632.

The product of its digits is 2880, while the sum is 28.

The square root of 838135 is about 915.4971327099. The cubic root of 838135 is about 94.2839985039.

The spelling of 838135 in words is "eight hundred thirty-eight thousand, one hundred thirty-five".