226712251 has 4 divisors (see below), whose sum is σ = 226769400. Its totient is φ = 226655104.

The previous prime is 226712249. The next prime is 226712267. The reversal of 226712251 is 152217622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152217622 = 2 ⋅76108811.

It is a cyclic number.

It is not a de Polignac number, because 226712251 - 2¹ = 226712249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226712201) 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, 22141 + ... + 30718.

It is an arithmetic number, because the mean of its divisors is an integer number (56692350).

Almost surely, 2^226712251 is an apocalyptic number.

226712251 is a deficient number, since it is larger than the sum of its proper divisors (57149).

226712251 is an equidigital number, since it uses as much as digits as its factorization.

226712251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57148.

The product of its digits is 3360, while the sum is 28.

The square root of 226712251 is about 15056.9668592316. The cubic root of 226712251 is about 609.7591551219.

Adding to 226712251 its reverse (152217622), we get a palindrome (378929873).

The spelling of 226712251 in words is "two hundred twenty-six million, seven hundred twelve thousand, two hundred fifty-one".