242152499 has 2 divisors, whose sum is σ = 242152500. Its totient is φ = 242152498.

The previous prime is 242152447. The next prime is 242152543. The reversal of 242152499 is 994251242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242152499 - 2⁸ = 242152243 is a prime.

It is not a weakly prime, because it can be changed into another prime (242152409) 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, 121076249 + 121076250.

It is an arithmetic number, because the mean of its divisors is an integer number (121076250).

Almost surely, 2^242152499 is an apocalyptic number.

242152499 is a deficient number, since it is larger than the sum of its proper divisors (1).

242152499 is an equidigital number, since it uses as much as digits as its factorization.

242152499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 242152499 is about 15561.2499176641. The cubic root of 242152499 is about 623.2988397002.

The spelling of 242152499 in words is "two hundred forty-two million, one hundred fifty-two thousand, four hundred ninety-nine".