131015171 has 6 divisors (see below), whose sum is σ = 152405460. Its totient is φ = 112298676.

The previous prime is 131015147. The next prime is 131015173. The reversal of 131015171 is 171510131.

It is not a de Polignac number, because 131015171 - 2²⁶ = 63906307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131015173) 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 5 ways as a sum of consecutive naturals, for example, 1336841 + ... + 1336938.

It is an arithmetic number, because the mean of its divisors is an integer number (25400910).

Almost surely, 2^131015171 is an apocalyptic number.

131015171 is a deficient number, since it is larger than the sum of its proper divisors (21390289).

131015171 is an equidigital number, since it uses as much as digits as its factorization.

131015171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2673793 (or 2673786 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 20.

The square root of 131015171 is about 11446.1858712848. The cubic root of 131015171 is about 507.8949125941.

The spelling of 131015171 in words is "one hundred thirty-one million, fifteen thousand, one hundred seventy-one".