242661823 has 2 divisors, whose sum is σ = 242661824. Its totient is φ = 242661822.

The previous prime is 242661817. The next prime is 242661829. The reversal of 242661823 is 328166242.

It is a balanced prime because it is at equal distance from previous prime (242661817) and next prime (242661829).

It is a cyclic number.

It is not a de Polignac number, because 242661823 - 2¹⁷ = 242530751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242661829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121330911 + 121330912.

It is an arithmetic number, because the mean of its divisors is an integer number (121330912).

Almost surely, 2^242661823 is an apocalyptic number.

242661823 is a deficient number, since it is larger than the sum of its proper divisors (1).

242661823 is an equidigital number, since it uses as much as digits as its factorization.

242661823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 34.

The square root of 242661823 is about 15577.6064592735. The cubic root of 242661823 is about 623.7355324802.

The spelling of 242661823 in words is "two hundred forty-two million, six hundred sixty-one thousand, eight hundred twenty-three".