164243097 has 12 divisors (see below), whose sum is σ = 237357120. Its totient is φ = 109441368.

The previous prime is 164243077. The next prime is 164243117. The reversal of 164243097 is 790342461.

164243097 is a `hidden beast` number, since 1 + 642 + 4 + 3 + 0 + 9 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (164243077) and next prime (164243117).

It is not a de Polignac number, because 164243097 - 2¹² = 164239001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164243017) 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 11 ways as a sum of consecutive naturals, for example, 24748 + ... + 30674.

It is an arithmetic number, because the mean of its divisors is an integer number (19779760).

Almost surely, 2^164243097 is an apocalyptic number.

It is an amenable number.

164243097 is a deficient number, since it is larger than the sum of its proper divisors (73114023).

164243097 is a wasteful number, since it uses less digits than its factorization.

164243097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9012 (or 9009 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 164243097 is about 12815.7363034669. The cubic root of 164243097 is about 547.6406894339.

The spelling of 164243097 in words is "one hundred sixty-four million, two hundred forty-three thousand, ninety-seven".