164252441 has 4 divisors (see below), whose sum is σ = 164303412. Its totient is φ = 164201472.

The previous prime is 164252423. The next prime is 164252467. The reversal of 164252441 is 144252461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144252461 = 251 ⋅574711.

It can be written as a sum of positive squares in 2 ways, for example, as 14899600 + 149352841 = 3860^2 + 12221^2 .

It is a cyclic number.

It is not a de Polignac number, because 164252441 - 2⁶ = 164252377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164252471) 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 in 3 ways as a sum of consecutive naturals, for example, 20300 + ... + 27213.

It is an arithmetic number, because the mean of its divisors is an integer number (41075853).

Almost surely, 2^164252441 is an apocalyptic number.

It is an amenable number.

164252441 is a deficient number, since it is larger than the sum of its proper divisors (50971).

164252441 is an equidigital number, since it uses as much as digits as its factorization.

164252441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50970.

The product of its digits is 7680, while the sum is 29.

The square root of 164252441 is about 12816.1008501026. The cubic root of 164252441 is about 547.6510745635.

The spelling of 164252441 in words is "one hundred sixty-four million, two hundred fifty-two thousand, four hundred forty-one".