1140123 has 4 divisors (see below), whose sum is σ = 1520168. Its totient is φ = 760080.

The previous prime is 1140121. The next prime is 1140127. The reversal of 1140123 is 3210411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1140123 - 2¹ = 1140121 is a prime.

It is a D-number.

It is a Duffinian number.

1140123 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1140099 and 1140108.

It is not an unprimeable number, because it can be changed into a prime (1140121) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 190018 + ... + 190023.

It is an arithmetic number, because the mean of its divisors is an integer number (380042).

2^1140123 is an apocalyptic number.

1140123 is a deficient number, since it is larger than the sum of its proper divisors (380045).

1140123 is an equidigital number, since it uses as much as digits as its factorization.

1140123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380044.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1140123 is about 1067.7654236769. The cubic root of 1140123 is about 104.4681495998.

Adding to 1140123 its reverse (3210411), we get a palindrome (4350534).

The spelling of 1140123 in words is "one million, one hundred forty thousand, one hundred twenty-three".