1139875 has 16 divisors (see below), whose sum is σ = 1553760. Its totient is φ = 828000.

The previous prime is 1139869. The next prime is 1139909. The reversal of 1139875 is 5789311.

It is a happy number.

It is not a de Polignac number, because 1139875 - 2⁵ = 1139843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1139875.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 961 + ... + 1789.

It is an arithmetic number, because the mean of its divisors is an integer number (97110).

2^1139875 is an apocalyptic number.

1139875 is a deficient number, since it is larger than the sum of its proper divisors (413885).

1139875 is an equidigital number, since it uses as much as digits as its factorization.

1139875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855 (or 845 counting only the distinct ones).

The product of its digits is 7560, while the sum is 34.

The square root of 1139875 is about 1067.6492869852. The cubic root of 1139875 is about 104.4605743997.

It can be divided in two parts, 1 and 139875, that added together give a square (139876 = 374²).

The spelling of 1139875 in words is "one million, one hundred thirty-nine thousand, eight hundred seventy-five".