1027129 has 2 divisors, whose sum is σ = 1027130. Its totient is φ = 1027128.

The previous prime is 1027127. The next prime is 1027139. The reversal of 1027129 is 9217201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 719104 + 308025 = 848^2 + 555^2 .

It is a cyclic number.

It is not a de Polignac number, because 1027129 - 2¹ = 1027127 is a prime.

Together with 1027127, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1027127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513564 + 513565.

It is an arithmetic number, because the mean of its divisors is an integer number (513565).

2^1027129 is an apocalyptic number.

It is an amenable number.

1027129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1027129 is an equidigital number, since it uses as much as digits as its factorization.

1027129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 1027129 is about 1013.4737293093. The cubic root of 1027129 is about 100.8962434793.

It can be divided in two parts, 1027 and 129, that added together give a square (1156 = 34²).

The spelling of 1027129 in words is "one million, twenty-seven thousand, one hundred twenty-nine".