520135354 has 4 divisors (see below), whose sum is σ = 780203034. Its totient is φ = 260067676.

The previous prime is 520135339. The next prime is 520135367. The reversal of 520135354 is 453531025.

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

It can be written as a sum of positive squares in only one way, i.e., 509540329 + 10595025 = 22573^2 + 3255^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130033837 + ... + 130033840.

Almost surely, 2^520135354 is an apocalyptic number.

520135354 is a deficient number, since it is larger than the sum of its proper divisors (260067680).

520135354 is a wasteful number, since it uses less digits than its factorization.

520135354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260067679.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 520135354 is about 22806.4761416577. The cubic root of 520135354 is about 804.2149176283.

Adding to 520135354 its reverse (453531025), we get a palindrome (973666379).

The spelling of 520135354 in words is "five hundred twenty million, one hundred thirty-five thousand, three hundred fifty-four".