164910947 has 2 divisors, whose sum is σ = 164910948. Its totient is φ = 164910946.

The previous prime is 164910929. The next prime is 164910971. The reversal of 164910947 is 749019461.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164910947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (164910247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82455473 + 82455474.

It is an arithmetic number, because the mean of its divisors is an integer number (82455474).

Almost surely, 2^164910947 is an apocalyptic number.

164910947 is a deficient number, since it is larger than the sum of its proper divisors (1).

164910947 is an equidigital number, since it uses as much as digits as its factorization.

164910947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 164910947 is about 12841.7657275002. The cubic root of 164910947 is about 548.3819630459.

The spelling of 164910947 in words is "one hundred sixty-four million, nine hundred ten thousand, nine hundred forty-seven".