852158389 has 2 divisors, whose sum is σ = 852158390. Its totient is φ = 852158388.

The previous prime is 852158347. The next prime is 852158393. The reversal of 852158389 is 983851258.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 764080164 + 88078225 = 27642^2 + 9385^2 .

It is a cyclic number.

It is not a de Polignac number, because 852158389 - 2¹³ = 852150197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (852158399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426079194 + 426079195.

It is an arithmetic number, because the mean of its divisors is an integer number (426079195).

Almost surely, 2^852158389 is an apocalyptic number.

It is an amenable number.

852158389 is a deficient number, since it is larger than the sum of its proper divisors (1).

852158389 is an equidigital number, since it uses as much as digits as its factorization.

852158389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 49.

The square root of 852158389 is about 29191.7520714328. The cubic root of 852158389 is about 948.0693529499.

The spelling of 852158389 in words is "eight hundred fifty-two million, one hundred fifty-eight thousand, three hundred eighty-nine".