131444045 has 8 divisors (see below), whose sum is σ = 157821696. Its totient is φ = 105096016.

The previous prime is 131444041. The next prime is 131444069. The reversal of 131444045 is 540444131.

It is a happy number.

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 131444045 - 2² = 131444041 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 (131444041) 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, 3944 + ... + 16686.

It is an arithmetic number, because the mean of its divisors is an integer number (19727712).

Almost surely, 2^131444045 is an apocalyptic number.

It is an amenable number.

131444045 is a deficient number, since it is larger than the sum of its proper divisors (26377651).

131444045 is a wasteful number, since it uses less digits than its factorization.

131444045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14811.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 131444045 is about 11464.9049276477. The cubic root of 131444045 is about 508.4485016011.

Adding to 131444045 its reverse (540444131), we get a palindrome (671888176).

The spelling of 131444045 in words is "one hundred thirty-one million, four hundred forty-four thousand, forty-five".