131075227 has 4 divisors (see below), whose sum is σ = 132426616. Its totient is φ = 129723840.

The previous prime is 131075179. The next prime is 131075233. The reversal of 131075227 is 722570131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131075227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131075195 and 131075204.

It is not an unprimeable number, because it can be changed into a prime (131075257) 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 3 ways as a sum of consecutive naturals, for example, 675549 + ... + 675742.

It is an arithmetic number, because the mean of its divisors is an integer number (33106654).

Almost surely, 2^131075227 is an apocalyptic number.

131075227 is a deficient number, since it is larger than the sum of its proper divisors (1351389).

131075227 is an equidigital number, since it uses as much as digits as its factorization.

131075227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351388.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 131075227 is about 11448.8089773566. The cubic root of 131075227 is about 507.9725053319.

The spelling of 131075227 in words is "one hundred thirty-one million, seventy-five thousand, two hundred twenty-seven".