226312521 has 8 divisors (see below), whose sum is σ = 302026560. Its totient is φ = 150736752.

The previous prime is 226312511. The next prime is 226312529. The reversal of 226312521 is 125213622.

226312521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 226312521 - 2¹¹ = 226310473 is a prime.

It is a super-2 number, since 2×226312521² = 102434714322750882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 226312491 and 226312500.

It is not an unprimeable number, because it can be changed into a prime (226312529) 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, 30685 + ... + 37338.

It is an arithmetic number, because the mean of its divisors is an integer number (37753320).

Almost surely, 2^226312521 is an apocalyptic number.

It is an amenable number.

226312521 is a deficient number, since it is larger than the sum of its proper divisors (75714039).

226312521 is a wasteful number, since it uses less digits than its factorization.

226312521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69135.

The product of its digits is 1440, while the sum is 24.

The square root of 226312521 is about 15043.6870812976. The cubic root of 226312521 is about 609.4005766201.

It can be divided in two parts, 22631 and 2521, that added together give a palindrome (25152).

The spelling of 226312521 in words is "two hundred twenty-six million, three hundred twelve thousand, five hundred twenty-one".