164315444 has 6 divisors (see below), whose sum is σ = 287552034. Its totient is φ = 82157720.

The previous prime is 164315443. The next prime is 164315467. The reversal of 164315444 is 444513461.

It can be written as a sum of positive squares in only one way, i.e., 164147344 + 168100 = 12812^2 + 410^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 164315444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164315441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20539427 + ... + 20539434.

It is an arithmetic number, because the mean of its divisors is an integer number (47925339).

Almost surely, 2^164315444 is an apocalyptic number.

It is an amenable number.

164315444 is a deficient number, since it is larger than the sum of its proper divisors (123236590).

164315444 is a wasteful number, since it uses less digits than its factorization.

164315444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41078865 (or 41078863 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 164315444 is about 12818.5585773128. The cubic root of 164315444 is about 547.7210872217.

The spelling of 164315444 in words is "one hundred sixty-four million, three hundred fifteen thousand, four hundred forty-four".