131671679 has 4 divisors (see below), whose sum is σ = 131704440. Its totient is φ = 131638920.

The previous prime is 131671669. The next prime is 131671703. The reversal of 131671679 is 976176131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131671679 - 2¹⁶ = 131606143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131671609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9344 + ... + 18725.

It is an arithmetic number, because the mean of its divisors is an integer number (32926110).

Almost surely, 2^131671679 is an apocalyptic number.

131671679 is a deficient number, since it is larger than the sum of its proper divisors (32761).

131671679 is an equidigital number, since it uses as much as digits as its factorization.

131671679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32760.

The product of its digits is 47628, while the sum is 41.

The square root of 131671679 is about 11474.8280597140. The cubic root of 131671679 is about 508.7418416752.

The spelling of 131671679 in words is "one hundred thirty-one million, six hundred seventy-one thousand, six hundred seventy-nine".