1129385 has 8 divisors (see below), whose sum is σ = 1368576. Its totient is φ = 894640.

The previous prime is 1129367. The next prime is 1129391. The reversal of 1129385 is 5839211.

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

It is not a de Polignac number, because 1129385 - 2¹⁶ = 1063849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 521 + ... + 1590.

It is an arithmetic number, because the mean of its divisors is an integer number (171072).

2^1129385 is an apocalyptic number.

It is an amenable number.

1129385 is a deficient number, since it is larger than the sum of its proper divisors (239191).

1129385 is a wasteful number, since it uses less digits than its factorization.

1129385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223.

The product of its digits is 2160, while the sum is 29.

The square root of 1129385 is about 1062.7252702369. The cubic root of 1129385 is about 104.1391443733.

The spelling of 1129385 in words is "one million, one hundred twenty-nine thousand, three hundred eighty-five".