838136053 has 4 divisors (see below), whose sum is σ = 838383628. Its totient is φ = 837888480.

The previous prime is 838136021. The next prime is 838136071. The reversal of 838136053 is 350631838.

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

It can be written as a sum of positive squares in 2 ways, for example, as 336465649 + 501670404 = 18343^2 + 22398^2 .

It is a cyclic number.

It is not a de Polignac number, because 838136053 - 2⁵ = 838136021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838136153) 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, 118638 + ... + 125503.

It is an arithmetic number, because the mean of its divisors is an integer number (209595907).

Almost surely, 2^838136053 is an apocalyptic number.

It is an amenable number.

838136053 is a deficient number, since it is larger than the sum of its proper divisors (247575).

838136053 is a wasteful number, since it uses less digits than its factorization.

838136053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247574.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 838136053 is about 28950.5794933366. The cubic root of 838136053 is about 942.8403798880.

The spelling of 838136053 in words is "eight hundred thirty-eight million, one hundred thirty-six thousand, fifty-three".