131171364 has 144 divisors (see below), whose sum is σ = 368484480. Its totient is φ = 39191040.

The previous prime is 131171347. The next prime is 131171387. The reversal of 131171364 is 463171131.

131171364 is a `hidden beast` number, since 131 + 171 + 364 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1796832 + ... + 1796904.

It is an arithmetic number, because the mean of its divisors is an integer number (2558920).

Almost surely, 2^131171364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131171364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184242240).

131171364 is an abundant number, since it is smaller than the sum of its proper divisors (237313116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131171364 is a wasteful number, since it uses less digits than its factorization.

131171364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 205 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 131171364 is about 11453.0067667840. The cubic root of 131171364 is about 508.0966656314.

The spelling of 131171364 in words is "one hundred thirty-one million, one hundred seventy-one thousand, three hundred sixty-four".