1461140 has 24 divisors (see below), whose sum is σ = 3141600. Its totient is φ = 570528.

The previous prime is 1461139. The next prime is 1461151. The reversal of 1461140 is 411641.

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, 11 + ... + 1709.

It is an arithmetic number, because the mean of its divisors is an integer number (130900).

2^1461140 is an apocalyptic number.

1461140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1461140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1570800).

1461140 is an abundant number, since it is smaller than the sum of its proper divisors (1680460).

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

1461140 is a wasteful number, since it uses less digits than its factorization.

1461140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751 (or 1749 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1461140 is about 1208.7762406666. The cubic root of 1461140 is about 113.4742384299.

Adding to 1461140 its reverse (411641), we get a palindrome (1872781).

The spelling of 1461140 in words is "one million, four hundred sixty-one thousand, one hundred forty".