164625143 has 2 divisors, whose sum is σ = 164625144. Its totient is φ = 164625142.

The previous prime is 164625133. The next prime is 164625151. The reversal of 164625143 is 341526461.

It is a strong prime.

It is an emirp because it is prime and its reverse (341526461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164625143 - 2⁶ = 164625079 is a prime.

It is a super-3 number, since 3×164625143³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164625103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82312571 + 82312572.

It is an arithmetic number, because the mean of its divisors is an integer number (82312572).

Almost surely, 2^164625143 is an apocalyptic number.

164625143 is a deficient number, since it is larger than the sum of its proper divisors (1).

164625143 is an equidigital number, since it uses as much as digits as its factorization.

164625143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 164625143 is about 12830.6329929587. The cubic root of 164625143 is about 548.0649831032.

The spelling of 164625143 in words is "one hundred sixty-four million, six hundred twenty-five thousand, one hundred forty-three".