31134664 has 64 divisors (see below), whose sum is σ = 66977280. Its totient is φ = 13440000.

The previous prime is 31134659. The next prime is 31134671. The reversal of 31134664 is 46643113.

It is an unprimeable number.

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, 275472 + ... + 275584.

It is an arithmetic number, because the mean of its divisors is an integer number (1046520).

Almost surely, 2^31134664 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 31134664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33488640).

31134664 is an abundant number, since it is smaller than the sum of its proper divisors (35842616).

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

31134664 is a wasteful number, since it uses less digits than its factorization.

31134664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 258 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 31134664 is about 5579.8444422761. The cubic root of 31134664 is about 314.5922800880.

Adding to 31134664 its reverse (46643113), we get a palindrome (77777777).

It can be divided in two parts, 3113 and 4664, that added together give a palindrome (7777).

The spelling of 31134664 in words is "thirty-one million, one hundred thirty-four thousand, six hundred sixty-four".