1229141 has 2 divisors, whose sum is σ = 1229142. Its totient is φ = 1229140.

The previous prime is 1229131. The next prime is 1229149. The reversal of 1229141 is 1419221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1030225 + 198916 = 1015^2 + 446^2 .

It is a cyclic number.

It is not a de Polignac number, because 1229141 - 2⁶ = 1229077 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1229149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614570 + 614571.

It is an arithmetic number, because the mean of its divisors is an integer number (614571).

2^1229141 is an apocalyptic number.

It is an amenable number.

1229141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229141 is an equidigital number, since it uses as much as digits as its factorization.

1229141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 20.

The square root of 1229141 is about 1108.6663158949. Note that the first 3 decimals coincide. The cubic root of 1229141 is about 107.1191789369.

The spelling of 1229141 in words is "one million, two hundred twenty-nine thousand, one hundred forty-one".