131262271 has 4 divisors (see below), whose sum is σ = 150014032. Its totient is φ = 112510512.

The previous prime is 131262251. The next prime is 131262281. The reversal of 131262271 is 172262131.

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 131262271 - 2¹⁵ = 131229503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131262251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9375870 + ... + 9375883.

It is an arithmetic number, because the mean of its divisors is an integer number (37503508).

Almost surely, 2^131262271 is an apocalyptic number.

131262271 is a deficient number, since it is larger than the sum of its proper divisors (18751761).

131262271 is an equidigital number, since it uses as much as digits as its factorization.

131262271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18751760.

The product of its digits is 1008, while the sum is 25.

The square root of 131262271 is about 11456.9747752188. The cubic root of 131262271 is about 508.2140156278.

The spelling of 131262271 in words is "one hundred thirty-one million, two hundred sixty-two thousand, two hundred seventy-one".