226756513 has 4 divisors (see below), whose sum is σ = 228200980. Its totient is φ = 225312048.

The previous prime is 226756499. The next prime is 226756531. The reversal of 226756513 is 315657622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63632529 + 163123984 = 7977^2 + 12772^2 .

It is a cyclic number.

It is not a de Polignac number, because 226756513 - 2⁹ = 226756001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226756573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721998 + ... + 722311.

It is an arithmetic number, because the mean of its divisors is an integer number (57050245).

Almost surely, 2^226756513 is an apocalyptic number.

It is an amenable number.

226756513 is a deficient number, since it is larger than the sum of its proper divisors (1444467).

226756513 is a wasteful number, since it uses less digits than its factorization.

226756513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444466.

The product of its digits is 75600, while the sum is 37.

The square root of 226756513 is about 15058.4366054382. The cubic root of 226756513 is about 609.7988345001.

The spelling of 226756513 in words is "two hundred twenty-six million, seven hundred fifty-six thousand, five hundred thirteen".