8045139853 has 8 divisors (see below), whose sum is σ = 8103358008. Its totient is φ = 7987010304.

The previous prime is 8045139833. The next prime is 8045139917. The reversal of 8045139853 is 3589315408.

It can be written as a sum of positive squares in 4 ways, for example, as 3175524 + 8041964329 = 1782^2 + 89677^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 8045139853 - 2²¹ = 8043042701 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 (8045139833) 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, 165825 + ... + 208777.

It is an arithmetic number, because the mean of its divisors is an integer number (1012919751).

Almost surely, 2^8045139853 is an apocalyptic number.

It is an amenable number.

8045139853 is a deficient number, since it is larger than the sum of its proper divisors (58218155).

8045139853 is a wasteful number, since it uses less digits than its factorization.

8045139853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44303.

The product of its (nonzero) digits is 518400, while the sum is 46.

The square root of 8045139853 is about 89694.7035950284. The cubic root of 8045139853 is about 2003.7546014898.

The spelling of 8045139853 in words is "eight billion, forty-five million, one hundred thirty-nine thousand, eight hundred fifty-three".