226523137 has 4 divisors (see below), whose sum is σ = 226553860. Its totient is φ = 226492416.

The previous prime is 226523131. The next prime is 226523179. The reversal of 226523137 is 731325622.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 156650256 + 69872881 = 12516^2 + 8359^2 .

It is a 3-Lehmer number, since φ(226523137) divides (226523137-1)³.

It is a cyclic number.

It is not a de Polignac number, because 226523137 - 2⁷ = 226523009 is a prime.

It is a deceptive number, since it divides R_226523136.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 226523099 and 226523108.

It is not an unprimeable number, because it can be changed into a prime (226523131) 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, 3073 + ... + 21505.

It is an arithmetic number, because the mean of its divisors is an integer number (56638465).

Almost surely, 2^226523137 is an apocalyptic number.

226523137 is the 12289-th pentagonal number.

It is an amenable number.

226523137 is a deficient number, since it is larger than the sum of its proper divisors (30723).

226523137 is a wasteful number, since it uses less digits than its factorization.

226523137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30722.

The product of its digits is 15120, while the sum is 31.

The square root of 226523137 is about 15050.6855990018. The cubic root of 226523137 is about 609.5895626530.

Adding to 226523137 its reverse (731325622), we get a palindrome (957848759).

The spelling of 226523137 in words is "two hundred twenty-six million, five hundred twenty-three thousand, one hundred thirty-seven".