164023147 has 2 divisors, whose sum is σ = 164023148. Its totient is φ = 164023146.

The previous prime is 164023129. The next prime is 164023187. The reversal of 164023147 is 741320461.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164023147 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (164023187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82011573 + 82011574.

It is an arithmetic number, because the mean of its divisors is an integer number (82011574).

Almost surely, 2^164023147 is an apocalyptic number.

164023147 is a deficient number, since it is larger than the sum of its proper divisors (1).

164023147 is an equidigital number, since it uses as much as digits as its factorization.

164023147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 164023147 is about 12807.1521814961. The cubic root of 164023147 is about 547.3961182641.

The spelling of 164023147 in words is "one hundred sixty-four million, twenty-three thousand, one hundred forty-seven".