1140945 has 16 divisors (see below), whose sum is σ = 1966272. Its totient is φ = 561600.

The previous prime is 1140929. The next prime is 1140949. The reversal of 1140945 is 5490411.

It is not a de Polignac number, because 1140945 - 2⁴ = 1140929 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1140949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2731 + ... + 3120.

It is an arithmetic number, because the mean of its divisors is an integer number (122892).

2^1140945 is an apocalyptic number.

1140945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1140945 is a deficient number, since it is larger than the sum of its proper divisors (825327).

1140945 is a wasteful number, since it uses less digits than its factorization.

1140945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5872.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1140945 is about 1068.1502703272. The cubic root of 1140945 is about 104.4932498711.

The spelling of 1140945 in words is "one million, one hundred forty thousand, nine hundred forty-five".