242631941 has 2 divisors, whose sum is σ = 242631942. Its totient is φ = 242631940.

The previous prime is 242631931. The next prime is 242631943. The reversal of 242631941 is 149136242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137569441 + 105062500 = 11729^2 + 10250^2 .

It is a cyclic number.

It is not a de Polignac number, because 242631941 - 2⁶ = 242631877 is a prime.

Together with 242631943, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 242631898 and 242631907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242631943) 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, 121315970 + 121315971.

It is an arithmetic number, because the mean of its divisors is an integer number (121315971).

Almost surely, 2^242631941 is an apocalyptic number.

It is an amenable number.

242631941 is a deficient number, since it is larger than the sum of its proper divisors (1).

242631941 is an equidigital number, since it uses as much as digits as its factorization.

242631941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 242631941 is about 15576.6472965141. The cubic root of 242631941 is about 623.7099286309.

The spelling of 242631941 in words is "two hundred forty-two million, six hundred thirty-one thousand, nine hundred forty-one".