1129345 has 16 divisors (see below), whose sum is σ = 1588608. Its totient is φ = 754560.

The previous prime is 1129343. The next prime is 1129367. The reversal of 1129345 is 5439211.

1129345 = 28² + 29² + ... + 150².

It is not a de Polignac number, because 1129345 - 2¹ = 1129343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1129343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1042 + ... + 1828.

It is an arithmetic number, because the mean of its divisors is an integer number (99288).

2^1129345 is an apocalyptic number.

It is an amenable number.

1129345 is a deficient number, since it is larger than the sum of its proper divisors (459263).

1129345 is an equidigital number, since it uses as much as digits as its factorization.

1129345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840.

The product of its digits is 1080, while the sum is 25.

The square root of 1129345 is about 1062.7064505309. The cubic root of 1129345 is about 104.1379149092.

The spelling of 1129345 in words is "one million, one hundred twenty-nine thousand, three hundred forty-five".