131317547 has 8 divisors (see below), whose sum is σ = 134729952. Its totient is φ = 127915200.

The previous prime is 131317541. The next prime is 131317559. The reversal of 131317547 is 745713131.

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 131317547 - 2¹² = 131313451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131317541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28922 + ... + 33152.

It is an arithmetic number, because the mean of its divisors is an integer number (16841244).

Almost surely, 2^131317547 is an apocalyptic number.

131317547 is a deficient number, since it is larger than the sum of its proper divisors (3412405).

131317547 is an equidigital number, since it uses as much as digits as its factorization.

131317547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5029.

The product of its digits is 8820, while the sum is 32.

The square root of 131317547 is about 11459.3868509620. The cubic root of 131317547 is about 508.2853438049.

The spelling of 131317547 in words is "one hundred thirty-one million, three hundred seventeen thousand, five hundred forty-seven".