226451521 has 2 divisors, whose sum is σ = 226451522. Its totient is φ = 226451520.

The previous prime is 226451513. The next prime is 226451527. The reversal of 226451521 is 125154622.

226451521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205520896 + 20930625 = 14336^2 + 4575^2 .

It is a cyclic number.

It is not a de Polignac number, because 226451521 - 2³ = 226451513 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 226451521.

It is not a weakly prime, because it can be changed into another prime (226451527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113225760 + 113225761.

It is an arithmetic number, because the mean of its divisors is an integer number (113225761).

Almost surely, 2^226451521 is an apocalyptic number.

It is an amenable number.

226451521 is a deficient number, since it is larger than the sum of its proper divisors (1).

226451521 is an equidigital number, since it uses as much as digits as its factorization.

226451521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 28.

The square root of 226451521 is about 15048.3062502064. The cubic root of 226451521 is about 609.5253146646.

The spelling of 226451521 in words is "two hundred twenty-six million, four hundred fifty-one thousand, five hundred twenty-one".