1451140 has 36 divisors (see below), whose sum is σ = 3191076. Its totient is φ = 554112.

The previous prime is 1451123. The next prime is 1451143. The reversal of 1451140 is 411541.

It can be written as a sum of positive squares in 6 ways, for example, as 331776 + 1119364 = 576^2 + 1058^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27354 + ... + 27406.

It is an arithmetic number, because the mean of its divisors is an integer number (88641).

2^1451140 is an apocalyptic number.

1451140 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 1451140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1595538).

1451140 is an abundant number, since it is smaller than the sum of its proper divisors (1739936).

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

1451140 is a wasteful number, since it uses less digits than its factorization.

1451140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1451140 is about 1204.6327241114. The cubic root of 1451140 is about 113.2147741333.

Adding to 1451140 its reverse (411541), we get a palindrome (1862681).

The spelling of 1451140 in words is "one million, four hundred fifty-one thousand, one hundred forty".