522734239 has 4 divisors (see below), whose sum is σ = 529895056. Its totient is φ = 515573424.

The previous prime is 522734227. The next prime is 522734263. The reversal of 522734239 is 932437225.

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

It is a cyclic number.

It is not a de Polignac number, because 522734239 - 2²⁷ = 388516511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 522734198 and 522734207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522734299) 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, 3580299 + ... + 3580444.

It is an arithmetic number, because the mean of its divisors is an integer number (132473764).

Almost surely, 2^522734239 is an apocalyptic number.

522734239 is a deficient number, since it is larger than the sum of its proper divisors (7160817).

522734239 is an equidigital number, since it uses as much as digits as its factorization.

522734239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7160816.

The product of its digits is 90720, while the sum is 37.

The square root of 522734239 is about 22863.3820551554. The cubic root of 522734239 is about 805.5521276859.

It can be divided in two parts, 52 and 2734239, that added together give a triangular number (2734291 = T₂₃₃₈).

The spelling of 522734239 in words is "five hundred twenty-two million, seven hundred thirty-four thousand, two hundred thirty-nine".