401139246227 has 2 divisors, whose sum is σ = 401139246228. Its totient is φ = 401139246226.

The previous prime is 401139246223. The next prime is 401139246241. The reversal of 401139246227 is 722642931104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401139246227 - 2² = 401139246223 is a prime.

It is not a weakly prime, because it can be changed into another prime (401139246223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200569623113 + 200569623114.

It is an arithmetic number, because the mean of its divisors is an integer number (200569623114).

Almost surely, 2^401139246227 is an apocalyptic number.

401139246227 is a deficient number, since it is larger than the sum of its proper divisors (1).

401139246227 is an equidigital number, since it uses as much as digits as its factorization.

401139246227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 401139246227 in words is "four hundred one billion, one hundred thirty-nine million, two hundred forty-six thousand, two hundred twenty-seven".