131495 has 24 divisors (see below), whose sum is σ = 206304. Its totient is φ = 78336.

The previous prime is 131489. The next prime is 131497. The reversal of 131495 is 594131.

131495 = T₁₃₀ + T₁₃₁ + ... + T₁₄₃.

It is a happy number.

It is not a de Polignac number, because 131495 - 2⁴ = 131479 is a prime.

It is a super-3 number, since 3×131495³ = 6821014503337125, which contains 333 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 131495.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131497) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 7727 + ... + 7743.

It is an arithmetic number, because the mean of its divisors is an integer number (8596).

2¹³¹⁴⁹⁵ is an apocalyptic number.

131495 is a deficient number, since it is larger than the sum of its proper divisors (74809).

131495 is a wasteful number, since it uses less digits than its factorization.

131495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59 (or 42 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 131495 is about 362.6223931309. The cubic root of 131495 is about 50.8514194057.

It can be divided in two parts, 131 and 495, that added together give a palindrome (626).

The spelling of 131495 in words is "one hundred thirty-one thousand, four hundred ninety-five".