131097227 has 2 divisors, whose sum is σ = 131097228. Its totient is φ = 131097226.

The previous prime is 131097223. The next prime is 131097257. The reversal of 131097227 is 722790131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131097227 - 2² = 131097223 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 131097193 and 131097202.

It is not a weakly prime, because it can be changed into another prime (131097221) 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 as a sum of consecutive naturals, namely, 65548613 + 65548614.

It is an arithmetic number, because the mean of its divisors is an integer number (65548614).

Almost surely, 2^131097227 is an apocalyptic number.

131097227 is a deficient number, since it is larger than the sum of its proper divisors (1).

131097227 is an equidigital number, since it uses as much as digits as its factorization.

131097227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 131097227 is about 11449.7697356759. The cubic root of 131097227 is about 508.0009235418. Note that the first 3 decimals are identical.

The spelling of 131097227 in words is "one hundred thirty-one million, ninety-seven thousand, two hundred twenty-seven".