165100197 has 8 divisors (see below), whose sum is σ = 222786144. Its totient is φ = 108740528.

The previous prime is 165100189. The next prime is 165100213. The reversal of 165100197 is 791001561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165100197 - 2³ = 165100189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165100147) 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, 331278 + ... + 331775.

It is an arithmetic number, because the mean of its divisors is an integer number (27848268).

Almost surely, 2^165100197 is an apocalyptic number.

It is an amenable number.

165100197 is a deficient number, since it is larger than the sum of its proper divisors (57685947).

165100197 is an equidigital number, since it uses as much as digits as its factorization.

165100197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663139.

The product of its (nonzero) digits is 1890, while the sum is 30.

The square root of 165100197 is about 12849.1321496823. The cubic root of 165100197 is about 548.5916552349.

The spelling of 165100197 in words is "one hundred sixty-five million, one hundred thousand, one hundred ninety-seven".