131140344 has 16 divisors (see below), whose sum is σ = 327850920. Its totient is φ = 43713440.

The previous prime is 131140333. The next prime is 131140393. The reversal of 131140344 is 443041131.

It is a self number, because there is not a number n which added to its sum of digits gives 131140344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2732067 + ... + 2732114.

Almost surely, 2^131140344 is an apocalyptic number.

It is an amenable number.

131140344 is an abundant number, since it is smaller than the sum of its proper divisors (196710576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131140344 is a wasteful number, since it uses less digits than its factorization.

131140344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5464190 (or 5464186 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 131140344 is about 11451.6524571784. The cubic root of 131140344 is about 508.0566101379.

Adding to 131140344 its reverse (443041131), we get a palindrome (574181475).

The spelling of 131140344 in words is "one hundred thirty-one million, one hundred forty thousand, three hundred forty-four".