31134132 has 48 divisors (see below), whose sum is σ = 81737600. Its totient is φ = 10375128.

The previous prime is 31134127. The next prime is 31134133. The reversal of 31134132 is 23143113.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 (31134133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6969 + ... + 10527.

Almost surely, 2^31134132 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 31134132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40868800).

31134132 is an abundant number, since it is smaller than the sum of its proper divisors (50603468).

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

31134132 is an equidigital number, since it uses as much as digits as its factorization.

31134132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3584 (or 3564 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 31134132 is about 5579.7967704926. The cubic root of 31134132 is about 314.5904882583.

Adding to 31134132 its reverse (23143113), we get a palindrome (54277245).

It can be divided in two parts, 311 and 34132, that added together give a palindrome (34443).

The spelling of 31134132 in words is "thirty-one million, one hundred thirty-four thousand, one hundred thirty-two".