131340941 has 4 divisors (see below), whose sum is σ = 132299772. Its totient is φ = 130382112.

The previous prime is 131340907. The next prime is 131340947. The reversal of 131340941 is 149043131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 149043131 = 17 ⋅8767243.

It can be written as a sum of positive squares in 2 ways, for example, as 111724900 + 19616041 = 10570^2 + 4429^2 .

It is a cyclic number.

It is not a de Polignac number, because 131340941 - 2¹⁸ = 131078797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131340941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131340947) 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, 479210 + ... + 479483.

It is an arithmetic number, because the mean of its divisors is an integer number (33074943).

Almost surely, 2^131340941 is an apocalyptic number.

It is an amenable number.

131340941 is a deficient number, since it is larger than the sum of its proper divisors (958831).

131340941 is an equidigital number, since it uses as much as digits as its factorization.

131340941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958830.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 131340941 is about 11460.4075407465. The cubic root of 131340941 is about 508.3155254056.

The spelling of 131340941 in words is "one hundred thirty-one million, three hundred forty thousand, nine hundred forty-one".