1144530 has 56 divisors (see below), whose sum is σ = 3108492. Its totient is φ = 303264.

The previous prime is 1144529. The next prime is 1144537. The reversal of 1144530 is 354411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1108809 + 35721 = 1053^2 + 189^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1144537) 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 27 ways as a sum of consecutive naturals, for example, 7212 + ... + 7368.

2^1144530 is an apocalyptic number.

1144530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1554246).

1144530 is an abundant number, since it is smaller than the sum of its proper divisors (1963962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144530 is an equidigital number, since it uses as much as digits as its factorization.

1144530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1144530 is about 1069.8270888326. The cubic root of 1144530 is about 104.6025793095.

Adding to 1144530 its reverse (354411), we get a palindrome (1498941).

The spelling of 1144530 in words is "one million, one hundred forty-four thousand, five hundred thirty".