1129859 has 2 divisors, whose sum is σ = 1129860. Its totient is φ = 1129858.

The previous prime is 1129853. The next prime is 1129861. The reversal of 1129859 is 9589211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1129859 - 2⁸ = 1129603 is a prime.

Together with 1129861, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1129853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564929 + 564930.

It is an arithmetic number, because the mean of its divisors is an integer number (564930).

2^1129859 is an apocalyptic number.

1129859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129859 is an equidigital number, since it uses as much as digits as its factorization.

1129859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 35.

The square root of 1129859 is about 1062.9482583833. The cubic root of 1129859 is about 104.1537113132.

The spelling of 1129859 in words is "one million, one hundred twenty-nine thousand, eight hundred fifty-nine".