164221941 has 8 divisors (see below), whose sum is σ = 235805920. Its totient is φ = 101059632.

The previous prime is 164221927. The next prime is 164221949. The reversal of 164221941 is 149122461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164221941 - 2⁶ = 164221877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164221899 and 164221908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164221949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2105371 + ... + 2105448.

It is an arithmetic number, because the mean of its divisors is an integer number (29475740).

Almost surely, 2^164221941 is an apocalyptic number.

It is an amenable number.

164221941 is a deficient number, since it is larger than the sum of its proper divisors (71583979).

164221941 is a wasteful number, since it uses less digits than its factorization.

164221941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4210835.

The product of its digits is 3456, while the sum is 30.

The square root of 164221941 is about 12814.9108853710. The cubic root of 164221941 is about 547.6171747289.

The spelling of 164221941 in words is "one hundred sixty-four million, two hundred twenty-one thousand, nine hundred forty-one".