1129239 has 6 divisors (see below), whose sum is σ = 1631136. Its totient is φ = 752820.

The previous prime is 1129229. The next prime is 1129253. The reversal of 1129239 is 9329211.

It is not a de Polignac number, because 1129239 - 2⁷ = 1129111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129229) 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 in 5 ways as a sum of consecutive naturals, for example, 62727 + ... + 62744.

It is an arithmetic number, because the mean of its divisors is an integer number (271856).

2^1129239 is an apocalyptic number.

1129239 is a deficient number, since it is larger than the sum of its proper divisors (501897).

1129239 is a wasteful number, since it uses less digits than its factorization.

1129239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125477 (or 125474 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 1129239 is about 1062.6565766982. The cubic root of 1129239 is about 104.1346566889.

The spelling of 1129239 in words is "one million, one hundred twenty-nine thousand, two hundred thirty-nine".