1081229 has 2 divisors, whose sum is σ = 1081230. Its totient is φ = 1081228.

The previous prime is 1081219. The next prime is 1081231. The reversal of 1081229 is 9221801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 990025 + 91204 = 995^2 + 302^2 .

It is an emirp because it is prime and its reverse (9221801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1081229 - 2⁸ = 1080973 is a prime.

Together with 1081231, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1081219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540614 + 540615.

It is an arithmetic number, because the mean of its divisors is an integer number (540615).

2^1081229 is an apocalyptic number.

It is an amenable number.

1081229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081229 is an equidigital number, since it uses as much as digits as its factorization.

1081229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1081229 is about 1039.8216193175. The cubic root of 1081229 is about 102.6374598335.

The spelling of 1081229 in words is "one million, eighty-one thousand, two hundred twenty-nine".