1129249 has 8 divisors (see below), whose sum is σ = 1239840. Its totient is φ = 1020000.

The previous prime is 1129229. The next prime is 1129253. The reversal of 1129249 is 9429211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1129249 - 2⁵ = 1129217 is a prime.

It is a Duffinian number.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2557 + ... + 2965.

It is an arithmetic number, because the mean of its divisors is an integer number (154980).

2^1129249 is an apocalyptic number.

It is an amenable number.

1129249 is a deficient number, since it is larger than the sum of its proper divisors (110591).

1129249 is a wasteful number, since it uses less digits than its factorization.

1129249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671.

The product of its digits is 1296, while the sum is 28.

The square root of 1129249 is about 1062.6612818768. The cubic root of 1129249 is about 104.1349640769.

It can be divided in two parts, 1129 and 249, that added together give a triangular number (1378 = T₅₂).

The spelling of 1129249 in words is "one million, one hundred twenty-nine thousand, two hundred forty-nine".