131671121 has 8 divisors (see below), whose sum is σ = 138724320. Its totient is φ = 124630272.

The previous prime is 131671109. The next prime is 131671129. The reversal of 131671121 is 121176131.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-131671121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131671129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25841 + ... + 30513.

It is an arithmetic number, because the mean of its divisors is an integer number (17340540).

Almost surely, 2^131671121 is an apocalyptic number.

It is an amenable number.

131671121 is a deficient number, since it is larger than the sum of its proper divisors (7053199).

131671121 is a wasteful number, since it uses less digits than its factorization.

131671121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6175.

The product of its digits is 252, while the sum is 23.

The square root of 131671121 is about 11474.8037455984. The cubic root of 131671121 is about 508.7411230232.

The spelling of 131671121 in words is "one hundred thirty-one million, six hundred seventy-one thousand, one hundred twenty-one".