520146499 has 2 divisors, whose sum is σ = 520146500. Its totient is φ = 520146498.

The previous prime is 520146493. The next prime is 520146511. The reversal of 520146499 is 994641025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520146499 - 2⁷ = 520146371 is a prime.

It is not a weakly prime, because it can be changed into another prime (520146493) by changing a digit.

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, 260073249 + 260073250.

It is an arithmetic number, because the mean of its divisors is an integer number (260073250).

Almost surely, 2^520146499 is an apocalyptic number.

520146499 is a deficient number, since it is larger than the sum of its proper divisors (1).

520146499 is an equidigital number, since it uses as much as digits as its factorization.

520146499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 520146499 is about 22806.7204788413. The cubic root of 520146499 is about 804.2206615891.

The spelling of 520146499 in words is "five hundred twenty million, one hundred forty-six thousand, four hundred ninety-nine".