242202109 has 2 divisors, whose sum is σ = 242202110. Its totient is φ = 242202108.

The previous prime is 242202083. The next prime is 242202137. The reversal of 242202109 is 901202242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 232654009 + 9548100 = 15253^2 + 3090^2 .

It is a cyclic number.

It is not a de Polignac number, because 242202109 - 2¹⁵ = 242169341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242202109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242206109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121101054 + 121101055.

It is an arithmetic number, because the mean of its divisors is an integer number (121101055).

Almost surely, 2^242202109 is an apocalyptic number.

It is an amenable number.

242202109 is a deficient number, since it is larger than the sum of its proper divisors (1).

242202109 is an equidigital number, since it uses as much as digits as its factorization.

242202109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 242202109 is about 15562.8438596550. The cubic root of 242202109 is about 623.3414020581.

The spelling of 242202109 in words is "two hundred forty-two million, two hundred two thousand, one hundred nine".