1022129 has 2 divisors, whose sum is σ = 1022130. Its totient is φ = 1022128.

The previous prime is 1022123. The next prime is 1022137. The reversal of 1022129 is 9212201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 954529 + 67600 = 977^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022129 - 2⁴ = 1022113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1022123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511064 + 511065.

It is an arithmetic number, because the mean of its divisors is an integer number (511065).

2^1022129 is an apocalyptic number.

It is an amenable number.

1022129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022129 is an equidigital number, since it uses as much as digits as its factorization.

1022129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1022129 is about 1011.0039564710. The cubic root of 1022129 is about 100.7322582243.

Adding to 1022129 its product of nonzero digits (72), we get a palindrome (1022201).

The spelling of 1022129 in words is "one million, twenty-two thousand, one hundred twenty-nine".