131735 has 4 divisors (see below), whose sum is σ = 158088. Its totient is φ = 105384.

The previous prime is 131731. The next prime is 131743. The reversal of 131735 is 537131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 537131 = 7 ⋅76733.

It is a cyclic number.

It is not a de Polignac number, because 131735 - 2² = 131731 is a prime.

It is a super-2 number, since 2×131735² = 34708220450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131731) 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 3 ways as a sum of consecutive naturals, for example, 13169 + ... + 13178.

It is an arithmetic number, because the mean of its divisors is an integer number (39522).

2¹³¹⁷³⁵ is an apocalyptic number.

131735 is a deficient number, since it is larger than the sum of its proper divisors (26353).

131735 is an equidigital number, since it uses as much as digits as its factorization.

131735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26352.

The product of its digits is 315, while the sum is 20.

The square root of 131735 is about 362.9531650227. The cubic root of 131735 is about 50.8823380039.

Adding to 131735 its reverse (537131), we get a palindrome (668866).

The spelling of 131735 in words is "one hundred thirty-one thousand, seven hundred thirty-five".