131694 has 16 divisors (see below), whose sum is σ = 269568. Its totient is φ = 42872.

The previous prime is 131687. The next prime is 131701. The reversal of 131694 is 496131.

It is an interprime number because it is at equal distance from previous prime (131687) and next prime (131701).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49 + ... + 515.

It is an arithmetic number, because the mean of its divisors is an integer number (16848).

2¹³¹⁶⁹⁴ is an apocalyptic number.

131694 is an abundant number, since it is smaller than the sum of its proper divisors (137874).

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

131694 is a wasteful number, since it uses less digits than its factorization.

131694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519.

The product of its digits is 648, while the sum is 24.

The square root of 131694 is about 362.8966795108. The cubic root of 131694 is about 50.8770587379.

It can be divided in two parts, 13 and 1694, that multiplied together give a palindrome (22022).

The spelling of 131694 in words is "one hundred thirty-one thousand, six hundred ninety-four".