1129975 has 24 divisors (see below), whose sum is σ = 1749888. Its totient is φ = 703200.

The previous prime is 1129963. The next prime is 1129991. The reversal of 1129975 is 5799211.

It is not a de Polignac number, because 1129975 - 2⁷ = 1129847 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

1129975 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1129975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1632 + ... + 2218.

It is an arithmetic number, because the mean of its divisors is an integer number (72912).

2^1129975 is an apocalyptic number.

1129975 is a deficient number, since it is larger than the sum of its proper divisors (619913).

1129975 is a wasteful number, since it uses less digits than its factorization.

1129975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 610 counting only the distinct ones).

The product of its digits is 5670, while the sum is 34.

The square root of 1129975 is about 1063.0028221976. The cubic root of 1129975 is about 104.1572755978.

The spelling of 1129975 in words is "one million, one hundred twenty-nine thousand, nine hundred seventy-five".