131351441 has 4 divisors (see below), whose sum is σ = 141455412. Its totient is φ = 121247472.

The previous prime is 131351399. The next prime is 131351447. The reversal of 131351441 is 144153131.

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: 144153131 = 31 ⋅4650101.

It can be written as a sum of positive squares in 2 ways, for example, as 57820816 + 73530625 = 7604^2 + 8575^2 .

It is a cyclic number.

It is not a de Polignac number, because 131351441 - 2⁶ = 131351377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131351447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5051966 + ... + 5051991.

It is an arithmetic number, because the mean of its divisors is an integer number (35363853).

Almost surely, 2^131351441 is an apocalyptic number.

It is an amenable number.

131351441 is a deficient number, since it is larger than the sum of its proper divisors (10103971).

131351441 is a wasteful number, since it uses less digits than its factorization.

131351441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10103970.

The product of its digits is 720, while the sum is 23.

The square root of 131351441 is about 11460.8656304836. The cubic root of 131351441 is about 508.3290707397.

The spelling of 131351441 in words is "one hundred thirty-one million, three hundred fifty-one thousand, four hundred forty-one".