131336105 has 4 divisors (see below), whose sum is σ = 157603332. Its totient is φ = 105068880.

The previous prime is 131336081. The next prime is 131336123. The reversal of 131336105 is 501633131.

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: 501633131 = 21149 ⋅23719.

It can be written as a sum of positive squares in 2 ways, for example, as 69288976 + 62047129 = 8324^2 + 7877^2 .

It is not a de Polignac number, because 131336105 - 2²⁰ = 130287529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13133606 + ... + 13133615.

It is an arithmetic number, because the mean of its divisors is an integer number (39400833).

Almost surely, 2^131336105 is an apocalyptic number.

It is an amenable number.

131336105 is a deficient number, since it is larger than the sum of its proper divisors (26267227).

131336105 is an equidigital number, since it uses as much as digits as its factorization.

131336105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26267226.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 131336105 is about 11460.1965515431. The cubic root of 131336105 is about 508.3092865689.

Adding to 131336105 its reverse (501633131), we get a palindrome (632969236).

The spelling of 131336105 in words is "one hundred thirty-one million, three hundred thirty-six thousand, one hundred five".