31336 has 8 divisors (see below), whose sum is σ = 58770. Its totient is φ = 15664.

The previous prime is 31333. The next prime is 31337. The reversal of 31336 is 63313.

It can be written as a sum of positive squares in only one way, i.e., 22500 + 8836 = 150^2 + 94^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 13.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (31333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1951 + ... + 1966.

2³¹³³⁶ is an apocalyptic number.

It is an amenable number.

31336 is a deficient number, since it is larger than the sum of its proper divisors (27434).

31336 is a wasteful number, since it uses less digits than its factorization.

31336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923 (or 3919 counting only the distinct ones).

The product of its digits is 162, while the sum is 16.

The square root of 31336 is about 177.0197729069. The cubic root of 31336 is about 31.5268939716.

Adding to 31336 its reverse (63313), we get a palindrome (94649).

The spelling of 31336 in words is "thirty-one thousand, three hundred thirty-six".