242913911 has 2 divisors, whose sum is σ = 242913912. Its totient is φ = 242913910.

The previous prime is 242913887. The next prime is 242913941. The reversal of 242913911 is 119319242.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242913911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242913941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121456955 + 121456956.

It is an arithmetic number, because the mean of its divisors is an integer number (121456956).

Almost surely, 2^242913911 is an apocalyptic number.

242913911 is a deficient number, since it is larger than the sum of its proper divisors (1).

242913911 is an equidigital number, since it uses as much as digits as its factorization.

242913911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 32.

The square root of 242913911 is about 15585.6957175482. The cubic root of 242913911 is about 623.9514458920.

The spelling of 242913911 in words is "two hundred forty-two million, nine hundred thirteen thousand, nine hundred eleven".