526243213 has 4 divisors (see below), whose sum is σ = 526459680. Its totient is φ = 526026748.

The previous prime is 526243199. The next prime is 526243231. The reversal of 526243213 is 312342625.

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 not a de Polignac number, because 526243213 - 2²¹ = 524146061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526253213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104545 + ... + 109462.

It is an arithmetic number, because the mean of its divisors is an integer number (131614920).

Almost surely, 2^526243213 is an apocalyptic number.

It is an amenable number.

526243213 is a deficient number, since it is larger than the sum of its proper divisors (216467).

526243213 is a wasteful number, since it uses less digits than its factorization.

526243213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216466.

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

The square root of 526243213 is about 22939.9915649505. The cubic root of 526243213 is about 807.3505942052.

Adding to 526243213 its reverse (312342625), we get a palindrome (838585838).

The spelling of 526243213 in words is "five hundred twenty-six million, two hundred forty-three thousand, two hundred thirteen".