131600340 has 36 divisors (see below), whose sum is σ = 399188244. Its totient is φ = 35093376.

The previous prime is 131600311. The next prime is 131600351. The reversal of 131600340 is 43006131.

131600340 is a `hidden beast` number, since 1 + 31 + 600 + 34 + 0 = 666.

131600340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 20466576 + 111133764 = 4524^2 + 10542^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 365377 + ... + 365736.

Almost surely, 2^131600340 is an apocalyptic number.

131600340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131600340 is an abundant number, since it is smaller than the sum of its proper divisors (267587904).

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

131600340 is a wasteful number, since it uses less digits than its factorization.

131600340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731128 (or 731123 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 131600340 is about 11471.7191388213. The cubic root of 131600340 is about 508.6499472224.

Adding to 131600340 its reverse (43006131), we get a palindrome (174606471).

The spelling of 131600340 in words is "one hundred thirty-one million, six hundred thousand, three hundred forty".