164650897 has 2 divisors, whose sum is σ = 164650898. Its totient is φ = 164650896.

The previous prime is 164650883. The next prime is 164650909. The reversal of 164650897 is 798056461.

164650897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92332881 + 72318016 = 9609^2 + 8504^2 .

It is a cyclic number.

It is not a de Polignac number, because 164650897 - 2¹⁹ = 164126609 is a prime.

It is not a weakly prime, because it can be changed into another prime (164650867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82325448 + 82325449.

It is an arithmetic number, because the mean of its divisors is an integer number (82325449).

Almost surely, 2^164650897 is an apocalyptic number.

It is an amenable number.

164650897 is a deficient number, since it is larger than the sum of its proper divisors (1).

164650897 is an equidigital number, since it uses as much as digits as its factorization.

164650897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 164650897 is about 12831.6365674843. The cubic root of 164650897 is about 548.0935614222.

The spelling of 164650897 in words is "one hundred sixty-four million, six hundred fifty thousand, eight hundred ninety-seven".