242992147 has 2 divisors, whose sum is σ = 242992148. Its totient is φ = 242992146.

The previous prime is 242992111. The next prime is 242992151. The reversal of 242992147 is 741299242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242992147 - 2²³ = 234603539 is a prime.

It is not a weakly prime, because it can be changed into another prime (242992847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121496073 + 121496074.

It is an arithmetic number, because the mean of its divisors is an integer number (121496074).

Almost surely, 2^242992147 is an apocalyptic number.

242992147 is a deficient number, since it is larger than the sum of its proper divisors (1).

242992147 is an equidigital number, since it uses as much as digits as its factorization.

242992147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

The square root of 242992147 is about 15588.2053809924. The cubic root of 242992147 is about 624.0184246628.

The spelling of 242992147 in words is "two hundred forty-two million, nine hundred ninety-two thousand, one hundred forty-seven".