423226513 has 4 divisors (see below), whose sum is σ = 423433728. Its totient is φ = 423019300.

The previous prime is 423226499. The next prime is 423226523. The reversal of 423226513 is 315622324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423226513 is a prime.

It is a super-2 number, since 2×423226513² = 358241362612278338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423226523) 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, 100513 + ... + 104638.

It is an arithmetic number, because the mean of its divisors is an integer number (105858432).

Almost surely, 2^423226513 is an apocalyptic number.

It is an amenable number.

423226513 is a deficient number, since it is larger than the sum of its proper divisors (207215).

423226513 is a wasteful number, since it uses less digits than its factorization.

423226513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207214.

The product of its digits is 8640, while the sum is 28.

The square root of 423226513 is about 20572.4697836696. The cubic root of 423226513 is about 750.8000428644.

Adding to 423226513 its reverse (315622324), we get a palindrome (738848837).

The spelling of 423226513 in words is "four hundred twenty-three million, two hundred twenty-six thousand, five hundred thirteen".