1144545 has 8 divisors (see below), whose sum is σ = 1831296. Its totient is φ = 610416.

The previous prime is 1144537. The next prime is 1144573. The reversal of 1144545 is 5454411.

It is a happy number.

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

It is not a de Polignac number, because 1144545 - 2³ = 1144537 is a prime.

It is an unprimeable number.

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, 38137 + ... + 38166.

It is an arithmetic number, because the mean of its divisors is an integer number (228912).

2^1144545 is an apocalyptic number.

1144545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144545 is a deficient number, since it is larger than the sum of its proper divisors (686751).

1144545 is an equidigital number, since it uses as much as digits as its factorization.

1144545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76311.

The product of its digits is 1600, while the sum is 24.

The square root of 1144545 is about 1069.8340992883. The cubic root of 1144545 is about 104.6030362749.

Adding to 1144545 its reverse (5454411), we get a palindrome (6598956).

The spelling of 1144545 in words is "one million, one hundred forty-four thousand, five hundred forty-five".