243001201 has 4 divisors (see below), whose sum is σ = 244856304. Its totient is φ = 241146100.

The previous prime is 243001193. The next prime is 243001207. The reversal of 243001201 is 102100342.

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, and also an emirpimes, since its reverse is a distinct semiprime: 102100342 = 2 ⋅51050171.

It is a cyclic number.

It is not a de Polignac number, because 243001201 - 2³ = 243001193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243001207) 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, 927355 + ... + 927616.

It is an arithmetic number, because the mean of its divisors is an integer number (61214076).

Almost surely, 2^243001201 is an apocalyptic number.

It is an amenable number.

243001201 is a deficient number, since it is larger than the sum of its proper divisors (1855103).

243001201 is a wasteful number, since it uses less digits than its factorization.

243001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855102.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 243001201 is about 15588.4957901653. The cubic root of 243001201 is about 624.0261749718.

Adding to 243001201 its reverse (102100342), we get a palindrome (345101543).

The spelling of 243001201 in words is "two hundred forty-three million, one thousand, two hundred one".