227658812137 has 2 divisors, whose sum is σ = 227658812138. Its totient is φ = 227658812136.

The previous prime is 227658812099. The next prime is 227658812149. The reversal of 227658812137 is 731218856722.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156111121881 + 71547690256 = 395109^2 + 267484^2 .

It is a cyclic number.

It is not a de Polignac number, because 227658812137 - 2³⁵ = 193299073769 is a prime.

It is not a weakly prime, because it can be changed into another prime (227658812167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113829406068 + 113829406069.

It is an arithmetic number, because the mean of its divisors is an integer number (113829406069).

Almost surely, 2^227658812137 is an apocalyptic number.

It is an amenable number.

227658812137 is a deficient number, since it is larger than the sum of its proper divisors (1).

227658812137 is an equidigital number, since it uses as much as digits as its factorization.

227658812137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2257920, while the sum is 52.

The spelling of 227658812137 in words is "two hundred twenty-seven billion, six hundred fifty-eight million, eight hundred twelve thousand, one hundred thirty-seven".