131726340 has 72 divisors (see below), whose sum is σ = 400720320. Its totient is φ = 35025984.

The previous prime is 131726311. The next prime is 131726351. The reversal of 131726340 is 43627131.

131726340 is a `hidden beast` number, since 1 + 317 + 2 + 6 + 340 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78187 + ... + 79853.

It is an arithmetic number, because the mean of its divisors is an integer number (5565560).

Almost surely, 2^131726340 is an apocalyptic number.

131726340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131726340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200360160).

131726340 is an abundant number, since it is smaller than the sum of its proper divisors (268993980).

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

131726340 is a wasteful number, since it uses less digits than its factorization.

131726340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121 (or 2116 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 131726340 is about 11477.2095911855. The cubic root of 131726340 is about 508.8122301113.

The spelling of 131726340 in words is "one hundred thirty-one million, seven hundred twenty-six thousand, three hundred forty".