63531130 has 16 divisors (see below), whose sum is σ = 123152904. Its totient is φ = 23457600.

The previous prime is 63531119. The next prime is 63531131. The reversal of 63531130 is 3113536.

It can be written as a sum of positive squares in 4 ways, for example, as 58660281 + 4870849 = 7659^2 + 2207^2 .

It is not an unprimeable number, because it can be changed into a prime (63531131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244221 + ... + 244480.

Almost surely, 2^63531130 is an apocalyptic number.

63531130 is a deficient number, since it is larger than the sum of its proper divisors (59621774).

63531130 is a wasteful number, since it uses less digits than its factorization.

63531130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488721.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 63531130 is about 7970.6417558438. The cubic root of 63531130 is about 399.0207923369.

Adding to 63531130 its reverse (3113536), we get a palindrome (66644666).

The spelling of 63531130 in words is "sixty-three million, five hundred thirty-one thousand, one hundred thirty".