226523729 has 8 divisors (see below), whose sum is σ = 232453032. Its totient is φ = 220613760.

The previous prime is 226523701. The next prime is 226523743. The reversal of 226523729 is 927325622.

It can be written as a sum of positive squares in 4 ways, for example, as 16418704 + 210105025 = 4052^2 + 14495^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 226523729 - 2²⁰ = 225475153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 226523692 and 226523701.

It is not an unprimeable number, because it can be changed into a prime (226523029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20627 + ... + 29639.

It is an arithmetic number, because the mean of its divisors is an integer number (29056629).

Almost surely, 2^226523729 is an apocalyptic number.

It is an amenable number.

226523729 is a deficient number, since it is larger than the sum of its proper divisors (5929303).

226523729 is an equidigital number, since it uses as much as digits as its factorization.

226523729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9667.

The product of its digits is 90720, while the sum is 38.

The square root of 226523729 is about 15050.7052658671. The cubic root of 226523729 is about 609.5900936903.

The spelling of 226523729 in words is "two hundred twenty-six million, five hundred twenty-three thousand, seven hundred twenty-nine".