227723740129 has 2 divisors, whose sum is σ = 227723740130. Its totient is φ = 227723740128.

The previous prime is 227723740121. The next prime is 227723740157. The reversal of 227723740129 is 921047327722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209330955729 + 18392784400 = 457527^2 + 135620^2 .

It is a cyclic number.

It is not a de Polignac number, because 227723740129 - 2³ = 227723740121 is a prime.

It is not a weakly prime, because it can be changed into another prime (227723740121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113861870064 + 113861870065.

It is an arithmetic number, because the mean of its divisors is an integer number (113861870065).

Almost surely, 2^227723740129 is an apocalyptic number.

It is an amenable number.

227723740129 is a deficient number, since it is larger than the sum of its proper divisors (1).

227723740129 is an equidigital number, since it uses as much as digits as its factorization.

227723740129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 46.

The spelling of 227723740129 in words is "two hundred twenty-seven billion, seven hundred twenty-three million, seven hundred forty thousand, one hundred twenty-nine".