242131330549 has 4 divisors (see below), whose sum is σ = 242212017100. Its totient is φ = 242050644000.

The previous prime is 242131330543. The next prime is 242131330577. The reversal of 242131330549 is 945033131242.

242131330549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 208284529924 + 33846800625 = 456382^2 + 183975^2 .

It is a cyclic number.

It is not a de Polignac number, because 242131330549 - 2⁷ = 242131330421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242131330543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40338774 + ... + 40344775.

It is an arithmetic number, because the mean of its divisors is an integer number (60553004275).

Almost surely, 2^242131330549 is an apocalyptic number.

It is an amenable number.

242131330549 is a deficient number, since it is larger than the sum of its proper divisors (80686551).

242131330549 is an equidigital number, since it uses as much as digits as its factorization.

242131330549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80686550.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 242131330549 in words is "two hundred forty-two billion, one hundred thirty-one million, three hundred thirty thousand, five hundred forty-nine".