242145201 has 4 divisors (see below), whose sum is σ = 322860272. Its totient is φ = 161430132.

The previous prime is 242145199. The next prime is 242145203. The reversal of 242145201 is 102541242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (242145199) and next prime (242145203).

It is not a de Polignac number, because 242145201 - 2¹ = 242145199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242145203) 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, 40357531 + ... + 40357536.

It is an arithmetic number, because the mean of its divisors is an integer number (80715068).

Almost surely, 2^242145201 is an apocalyptic number.

It is an amenable number.

242145201 is a deficient number, since it is larger than the sum of its proper divisors (80715071).

242145201 is an equidigital number, since it uses as much as digits as its factorization.

242145201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80715070.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 242145201 is about 15561.0154231657. The cubic root of 242145201 is about 623.2925779703.

Adding to 242145201 its reverse (102541242), we get a palindrome (344686443).

The spelling of 242145201 in words is "two hundred forty-two million, one hundred forty-five thousand, two hundred one".