63141540 has 192 divisors, whose sum is σ = 224501760. Its totient is φ = 12879360.

The previous prime is 63141521. The next prime is 63141557. The reversal of 63141540 is 4514136.

It is a self number, because there is not a number n which added to its sum of digits gives 63141540.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 364894 + ... + 365066.

It is an arithmetic number, because the mean of its divisors is an integer number (1169280).

Almost surely, 2^63141540 is an apocalyptic number.

63141540 is a gapful number since it is divisible by the number (60) 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 63141540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112250880).

63141540 is an abundant number, since it is smaller than the sum of its proper divisors (161360220).

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

63141540 is a wasteful number, since it uses less digits than its factorization.

63141540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 63141540 is about 7946.1651128076. The cubic root of 63141540 is about 398.2034850816.

Adding to 63141540 its reverse (4514136), we get a palindrome (67655676).

The spelling of 63141540 in words is "sixty-three million, one hundred forty-one thousand, five hundred forty".