634131132 has 24 divisors (see below), whose sum is σ = 1482311376. Its totient is φ = 210995328.

The previous prime is 634131131. The next prime is 634131143. The reversal of 634131132 is 231131436.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634131131) 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, 40753 + ... + 54120.

It is an arithmetic number, because the mean of its divisors is an integer number (61762974).

Almost surely, 2^634131132 is an apocalyptic number.

It is an amenable number.

634131132 is an abundant number, since it is smaller than the sum of its proper divisors (848180244).

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

634131132 is a wasteful number, since it uses less digits than its factorization.

634131132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95437 (or 95435 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 634131132 is about 25181.9604479079. The cubic root of 634131132 is about 859.1315968157.

Adding to 634131132 its reverse (231131436), we get a palindrome (865262568).

It can be divided in two parts, 6341 and 31132, that added together give a palindrome (37473).

The spelling of 634131132 in words is "six hundred thirty-four million, one hundred thirty-one thousand, one hundred thirty-two".