520340133 has 8 divisors (see below), whose sum is σ = 696047968. Its totient is φ = 345762864.

The previous prime is 520340123. The next prime is 520340147. The reversal of 520340133 is 331043025.

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

It is not a de Polignac number, because 520340133 - 2⁵ = 520340101 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 (520340123) 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, 281566 + ... + 283407.

It is an arithmetic number, because the mean of its divisors is an integer number (87005996).

Almost surely, 2^520340133 is an apocalyptic number.

It is an amenable number.

520340133 is a deficient number, since it is larger than the sum of its proper divisors (175707835).

520340133 is a wasteful number, since it uses less digits than its factorization.

520340133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565283.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 520340133 is about 22810.9651922053. The cubic root of 520340133 is about 804.3204444670.

Adding to 520340133 its reverse (331043025), we get a palindrome (851383158).

The spelling of 520340133 in words is "five hundred twenty million, three hundred forty thousand, one hundred thirty-three".