242155699 has 2 divisors, whose sum is σ = 242155700. Its totient is φ = 242155698.

The previous prime is 242155691. The next prime is 242155709. The reversal of 242155699 is 996551242.

242155699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242155699 - 2³ = 242155691 is a prime.

It is not a weakly prime, because it can be changed into another prime (242155691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121077849 + 121077850.

It is an arithmetic number, because the mean of its divisors is an integer number (121077850).

Almost surely, 2^242155699 is an apocalyptic number.

242155699 is a deficient number, since it is larger than the sum of its proper divisors (1).

242155699 is an equidigital number, since it uses as much as digits as its factorization.

242155699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 43.

The square root of 242155699 is about 15561.3527368285. The cubic root of 242155699 is about 623.3015852806.

The spelling of 242155699 in words is "two hundred forty-two million, one hundred fifty-five thousand, six hundred ninety-nine".