226374521 has 4 divisors (see below), whose sum is σ = 226414500. Its totient is φ = 226334544.

The previous prime is 226374503. The next prime is 226374523. The reversal of 226374521 is 125473622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 125473622 = 2 ⋅62736811.

It can be written as a sum of positive squares in 2 ways, for example, as 192210496 + 34164025 = 13864^2 + 5845^2 .

It is a cyclic number.

It is not a de Polignac number, because 226374521 - 2¹⁸ = 226112377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226374523) 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, 9746 + ... + 23403.

It is an arithmetic number, because the mean of its divisors is an integer number (56603625).

Almost surely, 2^226374521 is an apocalyptic number.

It is an amenable number.

226374521 is a deficient number, since it is larger than the sum of its proper divisors (39979).

226374521 is an equidigital number, since it uses as much as digits as its factorization.

226374521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39978.

The product of its digits is 20160, while the sum is 32.

The square root of 226374521 is about 15045.7476052206. The cubic root of 226374521 is about 609.4562214806.

The spelling of 226374521 in words is "two hundred twenty-six million, three hundred seventy-four thousand, five hundred twenty-one".