63543140 has 48 divisors (see below), whose sum is σ = 136745280. Its totient is φ = 24796800.

The previous prime is 63543133. The next prime is 63543143. The reversal of 63543140 is 4134536.

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 15 ways as a sum of consecutive naturals, for example, 167471 + ... + 167849.

It is an arithmetic number, because the mean of its divisors is an integer number (2848860).

Almost surely, 2^63543140 is an apocalyptic number.

It is an amenable number.

63543140 is an abundant number, since it is smaller than the sum of its proper divisors (73202140).

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

63543140 is a wasteful number, since it uses less digits than its factorization.

63543140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 63543140 is about 7971.3951100168. The cubic root of 63543140 is about 399.0459345403.

Adding to 63543140 its reverse (4134536), we get a palindrome (67677676).

The spelling of 63543140 in words is "sixty-three million, five hundred forty-three thousand, one hundred forty".