226512331 has 4 divisors (see below), whose sum is σ = 232037064. Its totient is φ = 220987600.

The previous prime is 226512323. The next prime is 226512343. The reversal of 226512331 is 133215622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133215622 = 2 ⋅66607811.

It is a cyclic number.

It is not a de Polignac number, because 226512331 - 2³ = 226512323 is a prime.

It is a super-2 number, since 2×226512331² = 102615672190107122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 226512296 and 226512305.

It is not an unprimeable number, because it can be changed into a prime (226512311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2762305 + ... + 2762386.

It is an arithmetic number, because the mean of its divisors is an integer number (58009266).

Almost surely, 2^226512331 is an apocalyptic number.

226512331 is a deficient number, since it is larger than the sum of its proper divisors (5524733).

226512331 is an equidigital number, since it uses as much as digits as its factorization.

226512331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524732.

The product of its digits is 2160, while the sum is 25.

The square root of 226512331 is about 15050.3266077517. The cubic root of 226512331 is about 609.5798692656.

Adding to 226512331 its reverse (133215622), we get a palindrome (359727953).

The spelling of 226512331 in words is "two hundred twenty-six million, five hundred twelve thousand, three hundred thirty-one".