31194 has 12 divisors (see below), whose sum is σ = 67626. Its totient is φ = 10392.

The previous prime is 31193. The next prime is 31219. The reversal of 31194 is 49113.

It can be written as a sum of positive squares in only one way, i.e., 27225 + 3969 = 165^2 + 63^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1733 = 31194 / (3 + 1 + 1 + 9 + 4).

It is a plaindrome in base 13.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (31193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 849 + ... + 884.

2³¹¹⁹⁴ is an apocalyptic number.

31194 is an abundant number, since it is smaller than the sum of its proper divisors (36432).

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

31194 is a wasteful number, since it uses less digits than its factorization.

31194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741 (or 1738 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 31194 is about 176.6182323544. The cubic root of 31194 is about 31.4792001764.

It can be divided in two parts, 31 and 194, that added together give a square (225 = 15²).

The spelling of 31194 in words is "thirty-one thousand, one hundred ninety-four".