1144905 has 16 divisors (see below), whose sum is σ = 1849344. Its totient is φ = 604800.

The previous prime is 1144903. The next prime is 1144907. The reversal of 1144905 is 5094411.

It is an interprime number because it is at equal distance from previous prime (1144903) and next prime (1144907).

It is not a de Polignac number, because 1144905 - 2¹ = 1144903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144901) 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, 1605 + ... + 2205.

It is an arithmetic number, because the mean of its divisors is an integer number (115584).

2^1144905 is an apocalyptic number.

1144905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144905 is a deficient number, since it is larger than the sum of its proper divisors (704439).

1144905 is a wasteful number, since it uses less digits than its factorization.

1144905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736.

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

The square root of 1144905 is about 1070.0023364460. The cubic root of 1144905 is about 104.6140022469.

The spelling of 1144905 in words is "one million, one hundred forty-four thousand, nine hundred five".