520142112 has 144 divisors (see below), whose sum is σ = 1719506880. Its totient is φ = 146059776.

The previous prime is 520142101. The next prime is 520142123. The reversal of 520142112 is 211241025.

520142112 is a `hidden beast` number, since 520 + 142 + 1 + 1 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (520142101) and next prime (520142123).

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116758 + ... + 121130.

It is an arithmetic number, because the mean of its divisors is an integer number (11941020).

Almost surely, 2^520142112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520142112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (859753440).

520142112 is an abundant number, since it is smaller than the sum of its proper divisors (1199364768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520142112 is a wasteful number, since it uses less digits than its factorization.

520142112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4455 (or 4444 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 520142112 is about 22806.6243008473. The cubic root of 520142112 is about 804.2184006068.

Adding to 520142112 its reverse (211241025), we get a palindrome (731383137).

The spelling of 520142112 in words is "five hundred twenty million, one hundred forty-two thousand, one hundred twelve".