63131244 has 48 divisors (see below), whose sum is σ = 161917056. Its totient is φ = 18985600.

The previous prime is 63131147. The next prime is 63131249. The reversal of 63131244 is 44213136.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (63131249) 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, 16339 + ... + 19829.

It is an arithmetic number, because the mean of its divisors is an integer number (3373272).

Almost surely, 2^63131244 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 63131244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80958528).

63131244 is an abundant number, since it is smaller than the sum of its proper divisors (98785812).

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

63131244 is a wasteful number, since it uses less digits than its factorization.

63131244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646 (or 3644 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 63131244 is about 7945.5172267134. The cubic root of 63131244 is about 398.1818399230.

It can be divided in two parts, 6313 and 1244, that added together give a palindrome (7557).

The spelling of 63131244 in words is "sixty-three million, one hundred thirty-one thousand, two hundred forty-four".