131394 has 16 divisors (see below), whose sum is σ = 267840. Its totient is φ = 42960.

The previous prime is 131381. The next prime is 131413. The reversal of 131394 is 493131.

It is a self number, because there is not a number n which added to its sum of digits gives 131394.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 131394.

It is an unprimeable number.

131394 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187 + ... + 545.

It is an arithmetic number, because the mean of its divisors is an integer number (16740).

2¹³¹³⁹⁴ is an apocalyptic number.

131394 is an abundant number, since it is smaller than the sum of its proper divisors (136446).

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

131394 is a wasteful number, since it uses less digits than its factorization.

131394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425.

The product of its digits is 324, while the sum is 21.

The square root of 131394 is about 362.4831030545. The cubic root of 131394 is about 50.8383965813.

It can be divided in two parts, 131 and 394, that added together give a palindrome (525).

The spelling of 131394 in words is "one hundred thirty-one thousand, three hundred ninety-four".