226312729 has 2 divisors, whose sum is σ = 226312730. Its totient is φ = 226312728.

The previous prime is 226312693. The next prime is 226312747. The reversal of 226312729 is 927213622.

It is a happy number.

226312729 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., 133633600 + 92679129 = 11560^2 + 9627^2 .

It is a cyclic number.

It is not a de Polignac number, because 226312729 - 2⁹ = 226312217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 226312694 and 226312703.

It is not a weakly prime, because it can be changed into another prime (226312759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113156364 + 113156365.

It is an arithmetic number, because the mean of its divisors is an integer number (113156365).

Almost surely, 2^226312729 is an apocalyptic number.

It is an amenable number.

226312729 is a deficient number, since it is larger than the sum of its proper divisors (1).

226312729 is an equidigital number, since it uses as much as digits as its factorization.

226312729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 226312729 is about 15043.6939944948. The cubic root of 226312729 is about 609.4007633166.

The spelling of 226312729 in words is "two hundred twenty-six million, three hundred twelve thousand, seven hundred twenty-nine".