242502151 has 2 divisors, whose sum is σ = 242502152. Its totient is φ = 242502150.

The previous prime is 242502121. The next prime is 242502173. The reversal of 242502151 is 151205242.

It is an a-pointer prime, because the next prime (242502173) can be obtained adding 242502151 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242502151 - 2¹¹ = 242500103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242502101) 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, 121251075 + 121251076.

It is an arithmetic number, because the mean of its divisors is an integer number (121251076).

Almost surely, 2^242502151 is an apocalyptic number.

242502151 is a deficient number, since it is larger than the sum of its proper divisors (1).

242502151 is an equidigital number, since it uses as much as digits as its factorization.

242502151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 242502151 is about 15572.4805666920. The cubic root of 242502151 is about 623.5986960236.

Adding to 242502151 its reverse (151205242), we get a palindrome (393707393).

The spelling of 242502151 in words is "two hundred forty-two million, five hundred two thousand, one hundred fifty-one".