131682021 has 8 divisors (see below), whose sum is σ = 175847520. Its totient is φ = 87652272.

The previous prime is 131682007. The next prime is 131682029. The reversal of 131682021 is 120286131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131682021 - 2¹¹ = 131679973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131681982 and 131682000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131682029) 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, 31651 + ... + 35568.

It is an arithmetic number, because the mean of its divisors is an integer number (21980940).

Almost surely, 2^131682021 is an apocalyptic number.

It is an amenable number.

131682021 is a deficient number, since it is larger than the sum of its proper divisors (44165499).

131682021 is an equidigital number, since it uses as much as digits as its factorization.

131682021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67875.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 131682021 is about 11475.2786894262. The cubic root of 131682021 is about 508.7551608401.

The spelling of 131682021 in words is "one hundred thirty-one million, six hundred eighty-two thousand, twenty-one".