242936231 has 2 divisors, whose sum is σ = 242936232. Its totient is φ = 242936230.

The previous prime is 242936201. The next prime is 242936249. The reversal of 242936231 is 132639242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242936231 - 2¹⁸ = 242674087 is a prime.

It is a super-2 number, since 2×242936231² = 118036024664970722, 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 (242936201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121468115 + 121468116.

It is an arithmetic number, because the mean of its divisors is an integer number (121468116).

Almost surely, 2^242936231 is an apocalyptic number.

242936231 is a deficient number, since it is larger than the sum of its proper divisors (1).

242936231 is an equidigital number, since it uses as much as digits as its factorization.

242936231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 32.

The square root of 242936231 is about 15586.4117422837. The cubic root of 242936231 is about 623.9705557756.

The spelling of 242936231 in words is "two hundred forty-two million, nine hundred thirty-six thousand, two hundred thirty-one".