202164197 has 4 divisors (see below), whose sum is σ = 202485216. Its totient is φ = 201843180.

The previous prime is 202164169. The next prime is 202164203. The reversal of 202164197 is 791461202.

It is a happy number.

202164197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202164197 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 (202164497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159563 + ... + 160824.

It is an arithmetic number, because the mean of its divisors is an integer number (50621304).

Almost surely, 2^202164197 is an apocalyptic number.

It is an amenable number.

202164197 is a deficient number, since it is larger than the sum of its proper divisors (321019).

202164197 is an equidigital number, since it uses as much as digits as its factorization.

202164197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321018.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 202164197 is about 14218.4456604792. The cubic root of 202164197 is about 586.9053679918.

The spelling of 202164197 in words is "two hundred two million, one hundred sixty-four thousand, one hundred ninety-seven".