242479277 has 2 divisors, whose sum is σ = 242479278. Its totient is φ = 242479276.

The previous prime is 242479261. The next prime is 242479319. The reversal of 242479277 is 772974242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227587396 + 14891881 = 15086^2 + 3859^2 .

It is a cyclic number.

It is not a de Polignac number, because 242479277 - 2⁴ = 242479261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242479247) 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, 121239638 + 121239639.

It is an arithmetic number, because the mean of its divisors is an integer number (121239639).

Almost surely, 2^242479277 is an apocalyptic number.

It is an amenable number.

242479277 is a deficient number, since it is larger than the sum of its proper divisors (1).

242479277 is an equidigital number, since it uses as much as digits as its factorization.

242479277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 44.

The square root of 242479277 is about 15571.7461127518. The cubic root of 242479277 is about 623.5790884379.

The spelling of 242479277 in words is "two hundred forty-two million, four hundred seventy-nine thousand, two hundred seventy-seven".