561141372 has 144 divisors (see below), whose sum is σ = 1544417280. Its totient is φ = 157893120.

The previous prime is 561141331. The next prime is 561141377. The reversal of 561141372 is 273141165.

561141372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561141377) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3134779 + ... + 3134957.

It is an arithmetic number, because the mean of its divisors is an integer number (10725120).

Almost surely, 2^561141372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561141372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772208640).

561141372 is an abundant number, since it is smaller than the sum of its proper divisors (983275908).

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

561141372 is a wasteful number, since it uses less digits than its factorization.

561141372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 339 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 561141372 is about 23688.4227419218. The cubic root of 561141372 is about 824.8166703750.

The spelling of 561141372 in words is "five hundred sixty-one million, one hundred forty-one thousand, three hundred seventy-two".