197568136 has 16 divisors (see below), whose sum is σ = 370604700. Its totient is φ = 98740224.

The previous prime is 197568131. The next prime is 197568139. The reversal of 197568136 is 631865791.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 153611236 + 43956900 = 12394^2 + 6630^2 .

It is not an unprimeable number, because it can be changed into a prime (197568131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21456 + ... + 29248.

Almost surely, 2^197568136 is an apocalyptic number.

It is an amenable number.

197568136 is a deficient number, since it is larger than the sum of its proper divisors (173036564).

197568136 is a wasteful number, since it uses less digits than its factorization.

197568136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10968 (or 10964 counting only the distinct ones).

The product of its digits is 272160, while the sum is 46.

The square root of 197568136 is about 14055.8932836017. The cubic root of 197568136 is about 582.4236040956.

The spelling of 197568136 in words is "one hundred ninety-seven million, five hundred sixty-eight thousand, one hundred thirty-six".