197056128 has 32 divisors (see below), whose sum is σ = 523431360. Its totient is φ = 65685248.

The previous prime is 197056109. The next prime is 197056141. The reversal of 197056128 is 821650791.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×197056128² = 77662235164704768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256200 + ... + 256967.

It is an arithmetic number, because the mean of its divisors is an integer number (16357230).

Almost surely, 2^197056128 is an apocalyptic number.

It is an amenable number.

197056128 is an abundant number, since it is smaller than the sum of its proper divisors (326375232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197056128 is an equidigital number, since it uses as much as digits as its factorization.

197056128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513184 (or 513172 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 197056128 is about 14037.6681824297. The cubic root of 197056128 is about 581.9200419199.

The spelling of 197056128 in words is "one hundred ninety-seven million, fifty-six thousand, one hundred twenty-eight".