226193663 has 4 divisors (see below), whose sum is σ = 227140320. Its totient is φ = 225247008.

The previous prime is 226193659. The next prime is 226193711. The reversal of 226193663 is 366391622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366391622 = 2 ⋅183195811.

It is a cyclic number.

It is not a de Polignac number, because 226193663 - 2² = 226193659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226193603) 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, 472970 + ... + 473447.

It is an arithmetic number, because the mean of its divisors is an integer number (56785080).

Almost surely, 2^226193663 is an apocalyptic number.

226193663 is a deficient number, since it is larger than the sum of its proper divisors (946657).

226193663 is an equidigital number, since it uses as much as digits as its factorization.

226193663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946656.

The product of its digits is 69984, while the sum is 38.

The square root of 226193663 is about 15039.7361346534. The cubic root of 226193663 is about 609.2938734095.

The spelling of 226193663 in words is "two hundred twenty-six million, one hundred ninety-three thousand, six hundred sixty-three".