197742164 has 24 divisors (see below), whose sum is σ = 367534440. Its totient is φ = 92768256.

The previous prime is 197742161. The next prime is 197742191. The reversal of 197742164 is 461247791.

197742164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 56370064 + 141372100 = 7508^2 + 11890^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197742161) 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, 18602 + ... + 27230.

It is an arithmetic number, because the mean of its divisors is an integer number (15313935).

Almost surely, 2^197742164 is an apocalyptic number.

It is an amenable number.

197742164 is a deficient number, since it is larger than the sum of its proper divisors (169792276).

197742164 is a wasteful number, since it uses less digits than its factorization.

197742164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8987 (or 8985 counting only the distinct ones).

The product of its digits is 84672, while the sum is 41.

The square root of 197742164 is about 14062.0824915800. The cubic root of 197742164 is about 582.5945632916.

The spelling of 197742164 in words is "one hundred ninety-seven million, seven hundred forty-two thousand, one hundred sixty-four".