242641801 has 4 divisors (see below), whose sum is σ = 242958100. Its totient is φ = 242325504.

The previous prime is 242641793. The next prime is 242641829. The reversal of 242641801 is 108146242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 108146242 = 2 ⋅54073121.

It can be written as a sum of positive squares in 2 ways, for example, as 36288576 + 206353225 = 6024^2 + 14365^2 .

It is a cyclic number.

It is not a de Polignac number, because 242641801 - 2³ = 242641793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242641801.

It is not an unprimeable number, because it can be changed into a prime (242641891) 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, 156996 + ... + 158533.

It is an arithmetic number, because the mean of its divisors is an integer number (60739525).

Almost surely, 2^242641801 is an apocalyptic number.

It is an amenable number.

242641801 is a deficient number, since it is larger than the sum of its proper divisors (316299).

242641801 is an equidigital number, since it uses as much as digits as its factorization.

242641801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316298.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 242641801 is about 15576.9637927293. The cubic root of 242641801 is about 623.7183772253.

The spelling of 242641801 in words is "two hundred forty-two million, six hundred forty-one thousand, eight hundred one".