131544031 has 8 divisors (see below), whose sum is σ = 135120384. Its totient is φ = 127985280.

The previous prime is 131544013. The next prime is 131544037. The reversal of 131544031 is 130445131.

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 131544031 - 2⁷ = 131543903 is a prime.

It is a super-2 number, since 2×131544031² = 34607664183457922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131543993 and 131544011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131544037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11515 + ... + 19891.

It is an arithmetic number, because the mean of its divisors is an integer number (16890048).

Almost surely, 2^131544031 is an apocalyptic number.

131544031 is a deficient number, since it is larger than the sum of its proper divisors (3576353).

131544031 is an equidigital number, since it uses as much as digits as its factorization.

131544031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8801.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 131544031 is about 11469.2646233313. The cubic root of 131544031 is about 508.5773900241.

Adding to 131544031 its reverse (130445131), we get a palindrome (261989162).

The spelling of 131544031 in words is "one hundred thirty-one million, five hundred forty-four thousand, thirty-one".