1087129 has 2 divisors, whose sum is σ = 1087130. Its totient is φ = 1087128.

The previous prime is 1087117. The next prime is 1087147. The reversal of 1087129 is 9217801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1054729 + 32400 = 1027^2 + 180^2 .

It is an emirp because it is prime and its reverse (9217801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1087129 - 2⁷ = 1087001 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1087097 and 1087106.

It is not a weakly prime, because it can be changed into another prime (1087109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543564 + 543565.

It is an arithmetic number, because the mean of its divisors is an integer number (543565).

2^1087129 is an apocalyptic number.

It is an amenable number.

1087129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087129 is an equidigital number, since it uses as much as digits as its factorization.

1087129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 1087129 is about 1042.6547846723. The cubic root of 1087129 is about 102.8238103890.

The spelling of 1087129 in words is "one million, eighty-seven thousand, one hundred twenty-nine".