131709382 has 16 divisors (see below), whose sum is σ = 225953280. Its totient is φ = 56405448.

The previous prime is 131709371. The next prime is 131709397. The reversal of 131709382 is 283907131.

It is a super-2 number, since 2×131709382² = 34694722613643848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 23619 + ... + 28657.

It is an arithmetic number, because the mean of its divisors is an integer number (14122080).

Almost surely, 2^131709382 is an apocalyptic number.

131709382 is a deficient number, since it is larger than the sum of its proper divisors (94243898).

131709382 is a wasteful number, since it uses less digits than its factorization.

131709382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6915.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 131709382 is about 11476.4707989869. The cubic root of 131709382 is about 508.7903949235.

The spelling of 131709382 in words is "one hundred thirty-one million, seven hundred nine thousand, three hundred eighty-two".