164485943 has 2 divisors, whose sum is σ = 164485944. Its totient is φ = 164485942.

The previous prime is 164485901. The next prime is 164485991. The reversal of 164485943 is 349584461.

It is a weak prime.

It is an emirp because it is prime and its reverse (349584461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164485943 - 2¹⁶ = 164420407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164485894 and 164485903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164485043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82242971 + 82242972.

It is an arithmetic number, because the mean of its divisors is an integer number (82242972).

Almost surely, 2^164485943 is an apocalyptic number.

164485943 is a deficient number, since it is larger than the sum of its proper divisors (1).

164485943 is an equidigital number, since it uses as much as digits as its factorization.

164485943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 44.

The square root of 164485943 is about 12825.2073277589. The cubic root of 164485943 is about 547.9104660853.

The spelling of 164485943 in words is "one hundred sixty-four million, four hundred eighty-five thousand, nine hundred forty-three".