131444501 has 8 divisors (see below), whose sum is σ = 137894400. Its totient is φ = 125122480.

The previous prime is 131444497. The next prime is 131444549. The reversal of 131444501 is 105444131.

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 131444501 - 2² = 131444497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131444581) 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, 29861 + ... + 33978.

It is an arithmetic number, because the mean of its divisors is an integer number (17236800).

Almost surely, 2^131444501 is an apocalyptic number.

It is an amenable number.

131444501 is a deficient number, since it is larger than the sum of its proper divisors (6449899).

131444501 is an equidigital number, since it uses as much as digits as its factorization.

131444501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63939.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 131444501 is about 11464.9248144068. The cubic root of 131444501 is about 508.4490895629.

Adding to 131444501 its reverse (105444131), we get a palindrome (236888632).

The spelling of 131444501 in words is "one hundred thirty-one million, four hundred forty-four thousand, five hundred one".