227051381 has 2 divisors, whose sum is σ = 227051382. Its totient is φ = 227051380.

The previous prime is 227051369. The next prime is 227051393. The reversal of 227051381 is 183150722.

227051381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (227051369) and next prime (227051393).

It can be written as a sum of positive squares in only one way, i.e., 226021156 + 1030225 = 15034^2 + 1015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227051381 is a prime.

It is a super-2 number, since 2×227051381² = 103104659228014322, which contains 22 as substring.

It is a Chen prime.

It is a nialpdrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227051281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113525690 + 113525691.

It is an arithmetic number, because the mean of its divisors is an integer number (113525691).

Almost surely, 2^227051381 is an apocalyptic number.

It is an amenable number.

227051381 is a deficient number, since it is larger than the sum of its proper divisors (1).

227051381 is an equidigital number, since it uses as much as digits as its factorization.

227051381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 227051381 is about 15068.2242152153. The cubic root of 227051381 is about 610.0630419482.

The spelling of 227051381 in words is "two hundred twenty-seven million, fifty-one thousand, three hundred eighty-one".