601621441 has 4 divisors (see below), whose sum is σ = 602185300. Its totient is φ = 601057584.

The previous prime is 601621417. The next prime is 601621457. The reversal of 601621441 is 144126106.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144126106 = 2 ⋅72063053.

It can be written as a sum of positive squares in 2 ways, for example, as 496353841 + 105267600 = 22279^2 + 10260^2 .

It is a cyclic number.

It is not a de Polignac number, because 601621441 - 2⁵ = 601621409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (601621841) 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, 280326 + ... + 282463.

It is an arithmetic number, because the mean of its divisors is an integer number (150546325).

Almost surely, 2^601621441 is an apocalyptic number.

It is an amenable number.

601621441 is a deficient number, since it is larger than the sum of its proper divisors (563859).

601621441 is a wasteful number, since it uses less digits than its factorization.

601621441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563858.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 601621441 is about 24527.9726231093. The cubic root of 601621441 is about 844.1917465445.

Adding to 601621441 its reverse (144126106), we get a palindrome (745747547).

The spelling of 601621441 in words is "six hundred one million, six hundred twenty-one thousand, four hundred forty-one".