853208157 has 4 divisors (see below), whose sum is σ = 1137610880. Its totient is φ = 568805436.

The previous prime is 853208149. The next prime is 853208171. The reversal of 853208157 is 751802358.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 853208157 - 2³ = 853208149 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 (853228157) 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, 142201357 + ... + 142201362.

It is an arithmetic number, because the mean of its divisors is an integer number (284402720).

Almost surely, 2^853208157 is an apocalyptic number.

It is an amenable number.

853208157 is a deficient number, since it is larger than the sum of its proper divisors (284402723).

853208157 is a wasteful number, since it uses less digits than its factorization.

853208157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284402722.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 853208157 is about 29209.7270956098. The cubic root of 853208157 is about 948.4584998813.

The spelling of 853208157 in words is "eight hundred fifty-three million, two hundred eight thousand, one hundred fifty-seven".