164907143 has 2 divisors, whose sum is σ = 164907144. Its totient is φ = 164907142.

The previous prime is 164907133. The next prime is 164907181. The reversal of 164907143 is 341709461.

It is a weak prime.

It is an emirp because it is prime and its reverse (341709461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164907143 - 2²⁰ = 163858567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164907103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82453571 + 82453572.

It is an arithmetic number, because the mean of its divisors is an integer number (82453572).

Almost surely, 2^164907143 is an apocalyptic number.

164907143 is a deficient number, since it is larger than the sum of its proper divisors (1).

164907143 is an equidigital number, since it uses as much as digits as its factorization.

164907143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 164907143 is about 12841.6176161728. The cubic root of 164907143 is about 548.3777465055.

The spelling of 164907143 in words is "one hundred sixty-four million, nine hundred seven thousand, one hundred forty-three".