131447347 has 8 divisors (see below), whose sum is σ = 139356032. Its totient is φ = 123768000.

The previous prime is 131447333. The next prime is 131447387. The reversal of 131447347 is 743744131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131447347 - 2⁷ = 131447219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131447317) 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 7 ways as a sum of consecutive naturals, for example, 56154 + ... + 58447.

It is an arithmetic number, because the mean of its divisors is an integer number (17419504).

Almost surely, 2^131447347 is an apocalyptic number.

131447347 is a deficient number, since it is larger than the sum of its proper divisors (7908685).

131447347 is a wasteful number, since it uses less digits than its factorization.

131447347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114669.

The product of its digits is 28224, while the sum is 34.

The square root of 131447347 is about 11465.0489314263. The cubic root of 131447347 is about 508.4527591362.

The spelling of 131447347 in words is "one hundred thirty-one million, four hundred forty-seven thousand, three hundred forty-seven".