197175090 has 64 divisors (see below), whose sum is σ = 564350976. Its totient is φ = 43108032.

The previous prime is 197175079. The next prime is 197175091. The reversal of 197175090 is 90571791.

It is a super-2 number, since 2×197175090² = 77756032233016200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (197175091) 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 31 ways as a sum of consecutive naturals, for example, 15582 + ... + 25241.

It is an arithmetic number, because the mean of its divisors is an integer number (8817984).

Almost surely, 2^197175090 is an apocalyptic number.

197175090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197175090 is an abundant number, since it is smaller than the sum of its proper divisors (367175886).

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

197175090 is a wasteful number, since it uses less digits than its factorization.

197175090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40863.

The product of its (nonzero) digits is 19845, while the sum is 39.

The square root of 197175090 is about 14041.9047853203. The cubic root of 197175090 is about 582.0371193009.

The spelling of 197175090 in words is "one hundred ninety-seven million, one hundred seventy-five thousand, ninety".