131442441 has 16 divisors (see below), whose sum is σ = 189948864. Its totient is φ = 80368704.

The previous prime is 131442439. The next prime is 131442461. The reversal of 131442441 is 144244131.

It is not a de Polignac number, because 131442441 - 2¹ = 131442439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131442461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4611 + ... + 16856.

It is an arithmetic number, because the mean of its divisors is an integer number (11871804).

Almost surely, 2^131442441 is an apocalyptic number.

It is an amenable number.

131442441 is a deficient number, since it is larger than the sum of its proper divisors (58506423).

131442441 is a wasteful number, since it uses less digits than its factorization.

131442441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21640.

The product of its digits is 1536, while the sum is 24.

The square root of 131442441 is about 11464.8349748263. The cubic root of 131442441 is about 508.4464334087.

Adding to 131442441 its reverse (144244131), we get a palindrome (275686572).

The spelling of 131442441 in words is "one hundred thirty-one million, four hundred forty-two thousand, four hundred forty-one".