520297142 has 4 divisors (see below), whose sum is σ = 780445716. Its totient is φ = 260148570.

The previous prime is 520297111. The next prime is 520297163. The reversal of 520297142 is 241792025.

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

It is a junction number, because it is equal to n+sod(n) for n = 520297099 and 520297108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130074284 + ... + 130074287.

It is an arithmetic number, because the mean of its divisors is an integer number (195111429).

Almost surely, 2^520297142 is an apocalyptic number.

520297142 is a deficient number, since it is larger than the sum of its proper divisors (260148574).

520297142 is a wasteful number, since it uses less digits than its factorization.

520297142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260148573.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 520297142 is about 22810.0228408478. The cubic root of 520297142 is about 804.2982926152.

The spelling of 520297142 in words is "five hundred twenty million, two hundred ninety-seven thousand, one hundred forty-two".