197465165 has 4 divisors (see below), whose sum is σ = 236958204. Its totient is φ = 157972128.

The previous prime is 197465137. The next prime is 197465167. The reversal of 197465165 is 561564791.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 145998889 + 51466276 = 12083^2 + 7174^2 .

It is a cyclic number.

It is not a de Polignac number, because 197465165 - 2¹⁴ = 197448781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197465167) 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, 19746512 + ... + 19746521.

It is an arithmetic number, because the mean of its divisors is an integer number (59239551).

Almost surely, 2^197465165 is an apocalyptic number.

It is an amenable number.

197465165 is a deficient number, since it is larger than the sum of its proper divisors (39493039).

197465165 is an equidigital number, since it uses as much as digits as its factorization.

197465165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39493038.

The product of its digits is 226800, while the sum is 44.

The square root of 197465165 is about 14052.2298942196. The cubic root of 197465165 is about 582.3224016036.

The spelling of 197465165 in words is "one hundred ninety-seven million, four hundred sixty-five thousand, one hundred sixty-five".