853272139 has 4 divisors (see below), whose sum is σ = 861720480. Its totient is φ = 844823800.

The previous prime is 853272073. The next prime is 853272187. The reversal of 853272139 is 931272358.

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 853272139 - 2¹¹ = 853270091 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (853270139) 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, 4224019 + ... + 4224220.

It is an arithmetic number, because the mean of its divisors is an integer number (215430120).

Almost surely, 2^853272139 is an apocalyptic number.

853272139 is a deficient number, since it is larger than the sum of its proper divisors (8448341).

853272139 is a wasteful number, since it uses less digits than its factorization.

853272139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8448340.

The product of its digits is 90720, while the sum is 40.

The square root of 853272139 is about 29210.8222924313. The cubic root of 853272139 is about 948.4822075601.

The spelling of 853272139 in words is "eight hundred fifty-three million, two hundred seventy-two thousand, one hundred thirty-nine".