853136238 has 8 divisors (see below), whose sum is σ = 1706272488. Its totient is φ = 284378744.

The previous prime is 853136237. The next prime is 853136261. The reversal of 853136238 is 832631358.

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

853136238 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 853136196 and 853136205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853136237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71094681 + ... + 71094692.

It is an arithmetic number, because the mean of its divisors is an integer number (213284061).

Almost surely, 2^853136238 is an apocalyptic number.

853136238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

853136238 is a wasteful number, since it uses less digits than its factorization.

853136238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142189378.

The product of its digits is 103680, while the sum is 39.

The square root of 853136238 is about 29208.4959900369. The cubic root of 853136238 is about 948.4318498377.

The spelling of 853136238 in words is "eight hundred fifty-three million, one hundred thirty-six thousand, two hundred thirty-eight".