131706284 has 24 divisors (see below), whose sum is σ = 239848560. Its totient is φ = 63205184.

The previous prime is 131706283. The next prime is 131706287. The reversal of 131706284 is 482607131.

It is a self number, because there is not a number n which added to its sum of digits gives 131706284.

It is not an unprimeable number, because it can be changed into a prime (131706283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16787 + ... + 23349.

It is an arithmetic number, because the mean of its divisors is an integer number (9993690).

Almost surely, 2^131706284 is an apocalyptic number.

It is an amenable number.

131706284 is a deficient number, since it is larger than the sum of its proper divisors (108142276).

131706284 is a wasteful number, since it uses less digits than its factorization.

131706284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6769 (or 6767 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 131706284 is about 11476.3358263864. The cubic root of 131706284 is about 508.7864057240.

The spelling of 131706284 in words is "one hundred thirty-one million, seven hundred six thousand, two hundred eighty-four".