242551303 has 2 divisors, whose sum is σ = 242551304. Its totient is φ = 242551302.

The previous prime is 242551279. The next prime is 242551319. The reversal of 242551303 is 303155242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242551303 - 2⁵ = 242551271 is a prime.

It is a super-2 number, since 2×242551303² = 117662269173995618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242551703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121275651 + 121275652.

It is an arithmetic number, because the mean of its divisors is an integer number (121275652).

Almost surely, 2^242551303 is an apocalyptic number.

242551303 is a deficient number, since it is larger than the sum of its proper divisors (1).

242551303 is an equidigital number, since it uses as much as digits as its factorization.

242551303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 242551303 is about 15574.0586553409. The cubic root of 242551303 is about 623.6408249316.

The spelling of 242551303 in words is "two hundred forty-two million, five hundred fifty-one thousand, three hundred three".