63811142 has 4 divisors (see below), whose sum is σ = 95716716. Its totient is φ = 31905570.

The previous prime is 63811133. The next prime is 63811151. The reversal of 63811142 is 24111836.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (63811133) and next prime (63811151).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15952784 + ... + 15952787.

It is an arithmetic number, because the mean of its divisors is an integer number (23929179).

Almost surely, 2^63811142 is an apocalyptic number.

63811142 is a deficient number, since it is larger than the sum of its proper divisors (31905574).

63811142 is a wasteful number, since it uses less digits than its factorization.

63811142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31905573.

The product of its digits is 1152, while the sum is 26.

The square root of 63811142 is about 7988.1876542805. The cubic root of 63811142 is about 399.6061581822.

Adding to 63811142 its reverse (24111836), we get a palindrome (87922978).

The spelling of 63811142 in words is "sixty-three million, eight hundred eleven thousand, one hundred forty-two".