209269141 has 2 divisors, whose sum is σ = 209269142. Its totient is φ = 209269140.

The previous prime is 209269139. The next prime is 209269153. The reversal of 209269141 is 141962902.

209269141 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 can be written as a sum of positive squares in only one way, i.e., 186896241 + 22372900 = 13671^2 + 4730^2 .

It is a cyclic number.

It is not a de Polignac number, because 209269141 - 2¹ = 209269139 is a prime.

Together with 209269139, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 209269097 and 209269106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (209269241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104634570 + 104634571.

It is an arithmetic number, because the mean of its divisors is an integer number (104634571).

Almost surely, 2^209269141 is an apocalyptic number.

It is an amenable number.

209269141 is a deficient number, since it is larger than the sum of its proper divisors (1).

209269141 is an equidigital number, since it uses as much as digits as its factorization.

209269141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 209269141 is about 14466.1377361063. The cubic root of 209269141 is about 593.7018431709.

The spelling of 209269141 in words is "two hundred nine million, two hundred sixty-nine thousand, one hundred forty-one".