131724841 has 12 divisors (see below), whose sum is σ = 140927616. Its totient is φ = 122888480.

The previous prime is 131724839. The next prime is 131724863. The reversal of 131724841 is 148427131.

It is not a de Polignac number, because 131724841 - 2¹ = 131724839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131724821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36960 + ... + 40366.

It is an arithmetic number, because the mean of its divisors is an integer number (11743968).

Almost surely, 2^131724841 is an apocalyptic number.

It is an amenable number.

131724841 is a deficient number, since it is larger than the sum of its proper divisors (9202775).

131724841 is an equidigital number, since it uses as much as digits as its factorization.

131724841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3512 (or 3471 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 131724841 is about 11477.1442876702. The cubic root of 131724841 is about 508.8103000685.

The spelling of 131724841 in words is "one hundred thirty-one million, seven hundred twenty-four thousand, eight hundred forty-one".