131198227 has 2 divisors, whose sum is σ = 131198228. Its totient is φ = 131198226.

The previous prime is 131198219. The next prime is 131198269. The reversal of 131198227 is 722891131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131198227 - 2³ = 131198219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131198192 and 131198201.

It is not a weakly prime, because it can be changed into another prime (131198527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65599113 + 65599114.

It is an arithmetic number, because the mean of its divisors is an integer number (65599114).

Almost surely, 2^131198227 is an apocalyptic number.

131198227 is a deficient number, since it is larger than the sum of its proper divisors (1).

131198227 is an equidigital number, since it uses as much as digits as its factorization.

131198227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 34.

The square root of 131198227 is about 11454.1794555525. The cubic root of 131198227 is about 508.1313481735.

The spelling of 131198227 in words is "one hundred thirty-one million, one hundred ninety-eight thousand, two hundred twenty-seven".