131706208 has 48 divisors (see below), whose sum is σ = 275970240. Its totient is φ = 61659136.

The previous prime is 131706161. The next prime is 131706217. The reversal of 131706208 is 802607131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129510 + ... + 130522.

It is an arithmetic number, because the mean of its divisors is an integer number (5749380).

Almost surely, 2^131706208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131706208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137985120).

131706208 is an abundant number, since it is smaller than the sum of its proper divisors (144264032).

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

131706208 is a wasteful number, since it uses less digits than its factorization.

131706208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279 (or 1271 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 131706208 is about 11476.3325152245. The cubic root of 131706208 is about 508.7863078604.

The spelling of 131706208 in words is "one hundred thirty-one million, seven hundred six thousand, two hundred eight".