164333943 has 12 divisors (see below), whose sum is σ = 237917680. Its totient is φ = 109303776.

The previous prime is 164333933. The next prime is 164333947. The reversal of 164333943 is 349333461.

164333943 is a `hidden beast` number, since 1 + 643 + 3 + 3 + 9 + 4 + 3 = 666.

It is not a de Polignac number, because 164333943 - 2⁴ = 164333927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164333898 and 164333907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164333947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16846 + ... + 24747.

Almost surely, 2^164333943 is an apocalyptic number.

164333943 is a deficient number, since it is larger than the sum of its proper divisors (73583737).

164333943 is a wasteful number, since it uses less digits than its factorization.

164333943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42038 (or 42035 counting only the distinct ones).

The product of its digits is 69984, while the sum is 36.

The square root of 164333943 is about 12819.2801279947. The cubic root of 164333943 is about 547.7416410052.

The spelling of 164333943 in words is "one hundred sixty-four million, three hundred thirty-three thousand, nine hundred forty-three".