164240441 has 2 divisors, whose sum is σ = 164240442. Its totient is φ = 164240440.

The previous prime is 164240431. The next prime is 164240473. The reversal of 164240441 is 144042461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125440000 + 38800441 = 11200^2 + 6229^2 .

It is a cyclic number.

It is not a de Polignac number, because 164240441 - 2¹⁰ = 164239417 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164240441.

It is not a weakly prime, because it can be changed into another prime (164240411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82120220 + 82120221.

It is an arithmetic number, because the mean of its divisors is an integer number (82120221).

Almost surely, 2^164240441 is an apocalyptic number.

It is an amenable number.

164240441 is a deficient number, since it is larger than the sum of its proper divisors (1).

164240441 is an equidigital number, since it uses as much as digits as its factorization.

164240441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 164240441 is about 12815.6326804415. The cubic root of 164240441 is about 547.6377374245.

The spelling of 164240441 in words is "one hundred sixty-four million, two hundred forty thousand, four hundred forty-one".