226388523 has 4 divisors (see below), whose sum is σ = 301851368. Its totient is φ = 150925680.

The previous prime is 226388497. The next prime is 226388537. The reversal of 226388523 is 325883622.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-226388523 is a prime.

It is a super-2 number, since 2×226388523² = 102503526692243058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226388573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37731418 + ... + 37731423.

It is an arithmetic number, because the mean of its divisors is an integer number (75462842).

Almost surely, 2^226388523 is an apocalyptic number.

226388523 is a deficient number, since it is larger than the sum of its proper divisors (75462845).

226388523 is an equidigital number, since it uses as much as digits as its factorization.

226388523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75462844.

The product of its digits is 138240, while the sum is 39.

The square root of 226388523 is about 15046.2129122248. The cubic root of 226388523 is about 609.4687868377.

The spelling of 226388523 in words is "two hundred twenty-six million, three hundred eighty-eight thousand, five hundred twenty-three".