226753661 has 4 divisors (see below), whose sum is σ = 230138112. Its totient is φ = 223369212.

The previous prime is 226753643. The next prime is 226753691. The reversal of 226753661 is 166357622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226753661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226753601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1692125 + ... + 1692258.

It is an arithmetic number, because the mean of its divisors is an integer number (57534528).

Almost surely, 2^226753661 is an apocalyptic number.

It is an amenable number.

226753661 is a deficient number, since it is larger than the sum of its proper divisors (3384451).

226753661 is an equidigital number, since it uses as much as digits as its factorization.

226753661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384450.

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

The square root of 226753661 is about 15058.3419073947. The cubic root of 226753661 is about 609.7962779347.

The spelling of 226753661 in words is "two hundred twenty-six million, seven hundred fifty-three thousand, six hundred sixty-one".