226251481 has 2 divisors, whose sum is σ = 226251482. Its totient is φ = 226251480.

The previous prime is 226251479. The next prime is 226251503. The reversal of 226251481 is 184152622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181575625 + 44675856 = 13475^2 + 6684^2 .

It is a cyclic number.

It is not a de Polignac number, because 226251481 - 2¹ = 226251479 is a prime.

It is a super-2 number, since 2×226251481² = 102379465309386722, which contains 22 as substring.

Together with 226251479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (226251401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113125740 + 113125741.

It is an arithmetic number, because the mean of its divisors is an integer number (113125741).

Almost surely, 2^226251481 is an apocalyptic number.

It is an amenable number.

226251481 is a deficient number, since it is larger than the sum of its proper divisors (1).

226251481 is an equidigital number, since it uses as much as digits as its factorization.

226251481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 31.

The square root of 226251481 is about 15041.6581865165. The cubic root of 226251481 is about 609.3457834285.

The spelling of 226251481 in words is "two hundred twenty-six million, two hundred fifty-one thousand, four hundred eighty-one".