242528072924161 has 4 divisors (see below), whose sum is σ = 256794430155012. Its totient is φ = 228261715693312.

The previous prime is 242528072924153. The next prime is 242528072924173. The reversal of 242528072924161 is 161429270825242.

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 227936589709761 + 14591483214400 = 15097569^2 + 3819880^2 .

It is a cyclic number.

It is not a de Polignac number, because 242528072924161 - 2³ = 242528072924153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242528072928161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7133178615400 + ... + 7133178615433.

It is an arithmetic number, because the mean of its divisors is an integer number (64198607538753).

Almost surely, 2^{242528072924161} is an apocalyptic number.

It is an amenable number.

242528072924161 is a deficient number, since it is larger than the sum of its proper divisors (14266357230851).

242528072924161 is a wasteful number, since it uses less digits than its factorization.

242528072924161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14266357230850.

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 242528072924161 in words is "two hundred forty-two trillion, five hundred twenty-eight billion, seventy-two million, nine hundred twenty-four thousand, one hundred sixty-one".