31343134 has 16 divisors (see below), whose sum is σ = 48037248. Its totient is φ = 15334272.

The previous prime is 31343131. The next prime is 31343153. The reversal of 31343134 is 43134313.

It is a happy number.

It is a nialpdrome in base 13.

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31343131) 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 7 ways as a sum of consecutive naturals, for example, 19219 + ... + 20785.

It is an arithmetic number, because the mean of its divisors is an integer number (3002328).

Almost surely, 2^31343134 is an apocalyptic number.

31343134 is a deficient number, since it is larger than the sum of its proper divisors (16694114).

31343134 is a wasteful number, since it uses less digits than its factorization.

31343134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779.

The product of its digits is 1296, while the sum is 22.

The square root of 31343134 is about 5598.4939046140. The cubic root of 31343134 is about 315.2928627649.

Adding to 31343134 its reverse (43134313), we get a palindrome (74477447).

The spelling of 31343134 in words is "thirty-one million, three hundred forty-three thousand, one hundred thirty-four".