520126133 has 8 divisors (see below), whose sum is σ = 523170648. Its totient is φ = 517089024.

The previous prime is 520126099. The next prime is 520126141. The reversal of 520126133 is 331621025.

It can be written as a sum of positive squares in 4 ways, for example, as 38850289 + 481275844 = 6233^2 + 21938^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520126133 - 2²⁴ = 503348917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520126099 and 520126108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520126433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197441 + ... + 200057.

It is an arithmetic number, because the mean of its divisors is an integer number (65396331).

Almost surely, 2^520126133 is an apocalyptic number.

It is an amenable number.

520126133 is a deficient number, since it is larger than the sum of its proper divisors (3044515).

520126133 is a wasteful number, since it uses less digits than its factorization.

520126133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 520126133 is about 22806.2739832705. The cubic root of 520126133 is about 804.2101652053.

Adding to 520126133 its reverse (331621025), we get a palindrome (851747158).

The spelling of 520126133 in words is "five hundred twenty million, one hundred twenty-six thousand, one hundred thirty-three".