1139975 has 6 divisors (see below), whose sum is σ = 1413600. Its totient is φ = 911960.

The previous prime is 1139959. The next prime is 1139989. The reversal of 1139975 is 5799311.

It is not a de Polignac number, because 1139975 - 2⁴ = 1139959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22775 + ... + 22824.

It is an arithmetic number, because the mean of its divisors is an integer number (235600).

2^1139975 is an apocalyptic number.

1139975 is a deficient number, since it is larger than the sum of its proper divisors (273625).

1139975 is an equidigital number, since it uses as much as digits as its factorization.

1139975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45609 (or 45604 counting only the distinct ones).

The product of its digits is 8505, while the sum is 35.

The square root of 1139975 is about 1067.6961178163. The cubic root of 1139975 is about 104.4636290480.

The spelling of 1139975 in words is "one million, one hundred thirty-nine thousand, nine hundred seventy-five".