242133547 has 2 divisors, whose sum is σ = 242133548. Its totient is φ = 242133546.

The previous prime is 242133527. The next prime is 242133553. The reversal of 242133547 is 745331242.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242133547 - 2¹⁹ = 241609259 is a prime.

It is not a weakly prime, because it can be changed into another prime (242133527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121066773 + 121066774.

It is an arithmetic number, because the mean of its divisors is an integer number (121066774).

Almost surely, 2^242133547 is an apocalyptic number.

242133547 is a deficient number, since it is larger than the sum of its proper divisors (1).

242133547 is an equidigital number, since it uses as much as digits as its factorization.

242133547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 31.

The square root of 242133547 is about 15560.6409572357. The cubic root of 242133547 is about 623.2825785041.

Adding to 242133547 its reverse (745331242), we get a palindrome (987464789).

The spelling of 242133547 in words is "two hundred forty-two million, one hundred thirty-three thousand, five hundred forty-seven".