242114921 has 2 divisors, whose sum is σ = 242114922. Its totient is φ = 242114920.

The previous prime is 242114909. The next prime is 242114927. The reversal of 242114921 is 129411242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164762896 + 77352025 = 12836^2 + 8795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242114921 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (242114927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121057460 + 121057461.

It is an arithmetic number, because the mean of its divisors is an integer number (121057461).

Almost surely, 2^242114921 is an apocalyptic number.

It is an amenable number.

242114921 is a deficient number, since it is larger than the sum of its proper divisors (1).

242114921 is an equidigital number, since it uses as much as digits as its factorization.

242114921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 26.

The square root of 242114921 is about 15560.0424485282. The cubic root of 242114921 is about 623.2665961958.

The spelling of 242114921 in words is "two hundred forty-two million, one hundred fourteen thousand, nine hundred twenty-one".