227640153289 has 2 divisors, whose sum is σ = 227640153290. Its totient is φ = 227640153288.

The previous prime is 227640153269. The next prime is 227640153313. The reversal of 227640153289 is 982351046722.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193417003264 + 34223150025 = 439792^2 + 184995^2 .

It is a cyclic number.

It is not a de Polignac number, because 227640153289 - 2⁷ = 227640153161 is a prime.

It is not a weakly prime, because it can be changed into another prime (227640153269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113820076644 + 113820076645.

It is an arithmetic number, because the mean of its divisors is an integer number (113820076645).

It is a 1-persistent number, because it is pandigital, but 2⋅227640153289 = 455280306578 is not.

Almost surely, 2^227640153289 is an apocalyptic number.

It is an amenable number.

227640153289 is a deficient number, since it is larger than the sum of its proper divisors (1).

227640153289 is an equidigital number, since it uses as much as digits as its factorization.

227640153289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 227640153289 in words is "two hundred twenty-seven billion, six hundred forty million, one hundred fifty-three thousand, two hundred eighty-nine".