8138952053 has 4 divisors (see below), whose sum is σ = 8139519948. Its totient is φ = 8138384160.

The previous prime is 8138952013. The next prime is 8138952061. The reversal of 8138952053 is 3502598318.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3502598318 = 2 ⋅1751299159.

It can be written as a sum of positive squares in 2 ways, for example, as 6322317169 + 1816634884 = 79513^2 + 42622^2 .

It is a cyclic number.

It is not a de Polignac number, because 8138952053 - 2⁸ = 8138951797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8138951995 and 8138952013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8138952013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261878 + ... + 291303.

It is an arithmetic number, because the mean of its divisors is an integer number (2034879987).

Almost surely, 2^8138952053 is an apocalyptic number.

It is an amenable number.

8138952053 is a deficient number, since it is larger than the sum of its proper divisors (567895).

8138952053 is a wasteful number, since it uses less digits than its factorization.

8138952053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567894.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 8138952053 is about 90216.1407565187. The cubic root of 8138952053 is about 2011.5129367262.

The spelling of 8138952053 in words is "eight billion, one hundred thirty-eight million, nine hundred fifty-two thousand, fifty-three".