131579171 has 2 divisors, whose sum is σ = 131579172. Its totient is φ = 131579170.

The previous prime is 131579137. The next prime is 131579191. The reversal of 131579171 is 171975131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131579171 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131579111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65789585 + 65789586.

It is an arithmetic number, because the mean of its divisors is an integer number (65789586).

Almost surely, 2^131579171 is an apocalyptic number.

131579171 is a deficient number, since it is larger than the sum of its proper divisors (1).

131579171 is an equidigital number, since it uses as much as digits as its factorization.

131579171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6615, while the sum is 35.

The square root of 131579171 is about 11470.7964413985. The cubic root of 131579171 is about 508.6226722469.

The spelling of 131579171 in words is "one hundred thirty-one million, five hundred seventy-nine thousand, one hundred seventy-one".