131004344 has 8 divisors (see below), whose sum is σ = 245633160. Its totient is φ = 65502168.

The previous prime is 131004337. The next prime is 131004421. The reversal of 131004344 is 443400131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8187764 + ... + 8187779.

It is an arithmetic number, because the mean of its divisors is an integer number (30704145).

Almost surely, 2^131004344 is an apocalyptic number.

It is an amenable number.

131004344 is a deficient number, since it is larger than the sum of its proper divisors (114628816).

131004344 is a wasteful number, since it uses less digits than its factorization.

131004344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16375549 (or 16375545 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 131004344 is about 11445.7129092075. The cubic root of 131004344 is about 507.8809215180.

Adding to 131004344 its reverse (443400131), we get a palindrome (574404475).

The spelling of 131004344 in words is "one hundred thirty-one million, four thousand, three hundred forty-four".