1144947 has 8 divisors (see below), whose sum is σ = 1546240. Its totient is φ = 753480.

The previous prime is 1144939. The next prime is 1144951. The reversal of 1144947 is 7494411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1144947 - 2³ = 1144939 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144907) 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 7 ways as a sum of consecutive naturals, for example, 2179 + ... + 2652.

It is an arithmetic number, because the mean of its divisors is an integer number (193280).

2^1144947 is an apocalyptic number.

1144947 is a deficient number, since it is larger than the sum of its proper divisors (401293).

1144947 is an equidigital number, since it uses as much as digits as its factorization.

1144947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4913.

The product of its digits is 4032, while the sum is 30.

The square root of 1144947 is about 1070.0219623914. The cubic root of 1144947 is about 104.6152814606.

The spelling of 1144947 in words is "one million, one hundred forty-four thousand, nine hundred forty-seven".