1140005 has 16 divisors (see below), whose sum is σ = 1439424. Its totient is φ = 865920.

The previous prime is 1139993. The next prime is 1140091. The reversal of 1140005 is 5000411.

1140005 = 96² + 97² + ... + 162².

It is not a de Polignac number, because 1140005 - 2⁴ = 1139989 is a prime.

It is a super-2 number, since 2×1140005² = 2599222800050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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, 13694 + ... + 13776.

It is an arithmetic number, because the mean of its divisors is an integer number (89964).

2^1140005 is an apocalyptic number.

It is an amenable number.

1140005 is a deficient number, since it is larger than the sum of its proper divisors (299419).

1140005 is an equidigital number, since it uses as much as digits as its factorization.

1140005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1140005 is about 1067.7101666651. The cubic root of 1140005 is about 104.4645454077.

Adding to 1140005 its reverse (5000411), we get a palindrome (6140416).

The spelling of 1140005 in words is "one million, one hundred forty thousand, five".