10561140 has 72 divisors (see below), whose sum is σ = 33441408. Its totient is φ = 2692800.

The previous prime is 10561139. The next prime is 10561147. The reversal of 10561140 is 4116501.

10561140 is a `hidden beast` number, since 10 + 5 + 611 + 40 = 666.

It is a super-2 number, since 2×10561140² = 223075356199200, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10561147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2865 + ... + 5415.

It is an arithmetic number, because the mean of its divisors is an integer number (464464).

Almost surely, 2^10561140 is an apocalyptic number.

10561140 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 10561140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16720704).

10561140 is an abundant number, since it is smaller than the sum of its proper divisors (22880268).

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

10561140 is a wasteful number, since it uses less digits than its factorization.

10561140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589 (or 2584 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 10561140 is about 3249.7907624953. The cubic root of 10561140 is about 219.4001566105.

Adding to 10561140 its reverse (4116501), we get a palindrome (14677641).

It can be divided in two parts, 10561 and 140, that added together give a palindrome (10701).

The spelling of 10561140 in words is "ten million, five hundred sixty-one thousand, one hundred forty".