164065043 has 4 divisors (see below), whose sum is σ = 164178048. Its totient is φ = 163952040.

The previous prime is 164065009. The next prime is 164065061. The reversal of 164065043 is 340560461.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164065043 - 2⁸ = 164064787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164064997 and 164065015.

It is not an unprimeable number, because it can be changed into a prime (164065063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54296 + ... + 57237.

It is an arithmetic number, because the mean of its divisors is an integer number (41044512).

Almost surely, 2^164065043 is an apocalyptic number.

164065043 is a deficient number, since it is larger than the sum of its proper divisors (113005).

164065043 is a wasteful number, since it uses less digits than its factorization.

164065043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113004.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 164065043 is about 12808.7877256203. The cubic root of 164065043 is about 547.4427209456.

The spelling of 164065043 in words is "one hundred sixty-four million, sixty-five thousand, forty-three".