164051441 has 2 divisors, whose sum is σ = 164051442. Its totient is φ = 164051440.

The previous prime is 164051417. The next prime is 164051449. The reversal of 164051441 is 144150461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156975841 + 7075600 = 12529^2 + 2660^2 .

It is a cyclic number.

It is not a de Polignac number, because 164051441 - 2¹⁰ = 164050417 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 164051441.

It is not a weakly prime, because it can be changed into another prime (164051449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82025720 + 82025721.

It is an arithmetic number, because the mean of its divisors is an integer number (82025721).

Almost surely, 2^164051441 is an apocalyptic number.

It is an amenable number.

164051441 is a deficient number, since it is larger than the sum of its proper divisors (1).

164051441 is an equidigital number, since it uses as much as digits as its factorization.

164051441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 164051441 is about 12808.2567510181. The cubic root of 164051441 is about 547.4275917392.

The spelling of 164051441 in words is "one hundred sixty-four million, fifty-one thousand, four hundred forty-one".