226453621 has 4 divisors (see below), whose sum is σ = 226660032. Its totient is φ = 226247212.

The previous prime is 226453613. The next prime is 226453639. The reversal of 226453621 is 126354622.

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, and also an emirpimes, since its reverse is a distinct semiprime: 126354622 = 2 ⋅63177311.

It is a cyclic number.

It is not a de Polignac number, because 226453621 - 2³ = 226453613 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 (226459621) 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, 101551 + ... + 103756.

It is an arithmetic number, because the mean of its divisors is an integer number (56665008).

Almost surely, 2^226453621 is an apocalyptic number.

It is an amenable number.

226453621 is a deficient number, since it is larger than the sum of its proper divisors (206411).

226453621 is a wasteful number, since it uses less digits than its factorization.

226453621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206410.

The product of its digits is 17280, while the sum is 31.

The square root of 226453621 is about 15048.3760253391. The cubic root of 226453621 is about 609.5271988047.

The spelling of 226453621 in words is "two hundred twenty-six million, four hundred fifty-three thousand, six hundred twenty-one".