520144829 has 2 divisors, whose sum is σ = 520144830. Its totient is φ = 520144828.

The previous prime is 520144789. The next prime is 520144837. The reversal of 520144829 is 928441025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 482812729 + 37332100 = 21973^2 + 6110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520144829 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520146829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260072414 + 260072415.

It is an arithmetic number, because the mean of its divisors is an integer number (260072415).

Almost surely, 2^520144829 is an apocalyptic number.

It is an amenable number.

520144829 is a deficient number, since it is larger than the sum of its proper divisors (1).

520144829 is an equidigital number, since it uses as much as digits as its factorization.

520144829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 520144829 is about 22806.6838667966. The cubic root of 520144829 is about 804.2198009021.

The spelling of 520144829 in words is "five hundred twenty million, one hundred forty-four thousand, eight hundred twenty-nine".