242244631 has 2 divisors, whose sum is σ = 242244632. Its totient is φ = 242244630.

The previous prime is 242244559. The next prime is 242244641. The reversal of 242244631 is 136442242.

242244631 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 242244631 - 2¹³ = 242236439 is a prime.

It is a super-2 number, since 2×242244631² = 117364922496652322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 242244631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242244641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121122315 + 121122316.

It is an arithmetic number, because the mean of its divisors is an integer number (121122316).

Almost surely, 2^242244631 is an apocalyptic number.

242244631 is a deficient number, since it is larger than the sum of its proper divisors (1).

242244631 is an equidigital number, since it uses as much as digits as its factorization.

242244631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 28.

The square root of 242244631 is about 15564.2099381883. The cubic root of 242244631 is about 623.3778787183.

Adding to 242244631 its reverse (136442242), we get a palindrome (378686873).

The spelling of 242244631 in words is "two hundred forty-two million, two hundred forty-four thousand, six hundred thirty-one".