131816141 has 4 divisors (see below), whose sum is σ = 134303292. Its totient is φ = 129328992.

The previous prime is 131816119. The next prime is 131816149. The reversal of 131816141 is 141618131.

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: 141618131 = 2791 ⋅50741.

It can be written as a sum of positive squares in 2 ways, for example, as 73599241 + 58216900 = 8579^2 + 7630^2 .

It is a cyclic number.

It is not a de Polignac number, because 131816141 - 2⁶ = 131816077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131816141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131816149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243496 + ... + 1243601.

It is an arithmetic number, because the mean of its divisors is an integer number (33575823).

Almost surely, 2^131816141 is an apocalyptic number.

It is an amenable number.

131816141 is a deficient number, since it is larger than the sum of its proper divisors (2487151).

131816141 is an equidigital number, since it uses as much as digits as its factorization.

131816141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487150.

The product of its digits is 576, while the sum is 26.

The square root of 131816141 is about 11481.1210689549. The cubic root of 131816141 is about 508.9278270069.

The spelling of 131816141 in words is "one hundred thirty-one million, eight hundred sixteen thousand, one hundred forty-one".