197529085 has 16 divisors (see below), whose sum is σ = 257536944. Its totient is φ = 144571392.

The previous prime is 197529071. The next prime is 197529097. The reversal of 197529085 is 580925791.

It can be written as a sum of positive squares in 8 ways, for example, as 18344089 + 179184996 = 4283^2 + 13386^2 .

It is a cyclic number.

It is not a de Polignac number, because 197529085 - 2²¹ = 195431933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6102 + ... + 20791.

It is an arithmetic number, because the mean of its divisors is an integer number (16096059).

Almost surely, 2^197529085 is an apocalyptic number.

It is an amenable number.

197529085 is a deficient number, since it is larger than the sum of its proper divisors (60007859).

197529085 is a wasteful number, since it uses less digits than its factorization.

197529085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27024.

The product of its (nonzero) digits is 226800, while the sum is 46.

The square root of 197529085 is about 14054.5040823218. The cubic root of 197529085 is about 582.3852279294.

The spelling of 197529085 in words is "one hundred ninety-seven million, five hundred twenty-nine thousand, eighty-five".