1461144 has 32 divisors (see below), whose sum is σ = 3813120. Its totient is φ = 465696.

The previous prime is 1461139. The next prime is 1461151. The reversal of 1461144 is 4411641.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1461144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772 + ... + 1875.

It is an arithmetic number, because the mean of its divisors is an integer number (119160).

2^1461144 is an apocalyptic number.

It is an amenable number.

1461144 is an abundant number, since it is smaller than the sum of its proper divisors (2351976).

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

1461144 is a wasteful number, since it uses less digits than its factorization.

1461144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679 (or 2675 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 1461144 is about 1208.7778952314. Note that the first 3 decimals coincide. The cubic root of 1461144 is about 113.4743419784.

Adding to 1461144 its reverse (4411641), we get a palindrome (5872785).

The spelling of 1461144 in words is "one million, four hundred sixty-one thousand, one hundred forty-four".