63131142 has 16 divisors (see below), whose sum is σ = 126453312. Its totient is φ = 21011880.

The previous prime is 63131111. The next prime is 63131147. The reversal of 63131142 is 24113136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63131147) 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, 3468 + ... + 11759.

It is an arithmetic number, because the mean of its divisors is an integer number (7903332).

Almost surely, 2^63131142 is an apocalyptic number.

63131142 is an abundant number, since it is smaller than the sum of its proper divisors (63322170).

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

63131142 is a wasteful number, since it uses less digits than its factorization.

63131142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15923.

The product of its digits is 432, while the sum is 21.

The square root of 63131142 is about 7945.5108079972. The cubic root of 63131142 is about 398.1816254778.

Adding to 63131142 its reverse (24113136), we get a palindrome (87244278).

The spelling of 63131142 in words is "sixty-three million, one hundred thirty-one thousand, one hundred forty-two".