31494 has 16 divisors (see below), whose sum is σ = 65520. Its totient is φ = 10080.

The previous prime is 31489. The next prime is 31511. The reversal of 31494 is 49413.

31494 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 31494.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84 + ... + 264.

It is an arithmetic number, because the mean of its divisors is an integer number (4095).

2³¹⁴⁹⁴ is an apocalyptic number.

31494 is an abundant number, since it is smaller than the sum of its proper divisors (34026).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32760).

31494 is a wasteful number, since it uses less digits than its factorization.

31494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215.

The product of its digits is 432, while the sum is 21.

The square root of 31494 is about 177.4654896029. The cubic root of 31494 is about 31.5797926674.

It can be divided in two parts, 31 and 494, that added together give a palindrome (525).

The spelling of 31494 in words is "thirty-one thousand, four hundred ninety-four".