242487911 has 2 divisors, whose sum is σ = 242487912. Its totient is φ = 242487910.

The previous prime is 242487877. The next prime is 242487923. The reversal of 242487911 is 119784242.

It is a happy number.

242487911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242487911 - 2¹⁰ = 242486887 is a prime.

It is a super-2 number, since 2×242487911² = 117600773962287842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242483911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121243955 + 121243956.

It is an arithmetic number, because the mean of its divisors is an integer number (121243956).

Almost surely, 2^242487911 is an apocalyptic number.

242487911 is a deficient number, since it is larger than the sum of its proper divisors (1).

242487911 is an equidigital number, since it uses as much as digits as its factorization.

242487911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 38.

The square root of 242487911 is about 15572.0233431626. The cubic root of 242487911 is about 623.5864896449.

The spelling of 242487911 in words is "two hundred forty-two million, four hundred eighty-seven thousand, nine hundred eleven".