520142901 has 16 divisors (see below), whose sum is σ = 707391360. Its totient is φ = 339842880.

The previous prime is 520142837. The next prime is 520142923. The reversal of 520142901 is 109241025.

It is not a de Polignac number, because 520142901 - 2⁶ = 520142837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520142941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275880 + ... + 277758.

It is an arithmetic number, because the mean of its divisors is an integer number (44211960).

Almost surely, 2^520142901 is an apocalyptic number.

It is an amenable number.

520142901 is a deficient number, since it is larger than the sum of its proper divisors (187248459).

520142901 is a wasteful number, since it uses less digits than its factorization.

520142901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 520142901 is about 22806.6415984467. The cubic root of 520142901 is about 804.2188072444.

Adding to 520142901 its reverse (109241025), we get a palindrome (629383926).

The spelling of 520142901 in words is "five hundred twenty million, one hundred forty-two thousand, nine hundred one".