63543144 has 128 divisors (see below), whose sum is σ = 202521600. Its totient is φ = 16174080.

The previous prime is 63543143. The next prime is 63543173. The reversal of 63543144 is 44134536.

It is a super-2 number, since 2×63543144² = 8075462298809472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63543143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53679 + ... + 54849.

It is an arithmetic number, because the mean of its divisors is an integer number (1582200).

Almost surely, 2^63543144 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 63543144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101260800).

63543144 is an abundant number, since it is smaller than the sum of its proper divisors (138978456).

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

63543144 is a wasteful number, since it uses less digits than its factorization.

63543144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223 (or 1219 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 63543144 is about 7971.3953609139. The cubic root of 63543144 is about 399.0459429135.

The spelling of 63543144 in words is "sixty-three million, five hundred forty-three thousand, one hundred forty-four".