243045151 has 2 divisors, whose sum is σ = 243045152. Its totient is φ = 243045150.

The previous prime is 243045149. The next prime is 243045161. The reversal of 243045151 is 151540342.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243045151 - 2¹ = 243045149 is a prime.

It is a super-3 number, since 3×243045151³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 243045149, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243045161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121522575 + 121522576.

It is an arithmetic number, because the mean of its divisors is an integer number (121522576).

Almost surely, 2^243045151 is an apocalyptic number.

243045151 is a deficient number, since it is larger than the sum of its proper divisors (1).

243045151 is an equidigital number, since it uses as much as digits as its factorization.

243045151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 243045151 is about 15589.9054198542. The cubic root of 243045151 is about 624.0637938491.

Adding to 243045151 its reverse (151540342), we get a palindrome (394585493).

The spelling of 243045151 in words is "two hundred forty-three million, forty-five thousand, one hundred fifty-one".