520345127 has 2 divisors, whose sum is σ = 520345128. Its totient is φ = 520345126.

The previous prime is 520345117. The next prime is 520345141. The reversal of 520345127 is 721543025.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520345127 is a prime.

It is a super-2 number, since 2×520345127² = 541518102385292258, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 520345127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520345117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260172563 + 260172564.

It is an arithmetic number, because the mean of its divisors is an integer number (260172564).

Almost surely, 2^520345127 is an apocalyptic number.

520345127 is a deficient number, since it is larger than the sum of its proper divisors (1).

520345127 is an equidigital number, since it uses as much as digits as its factorization.

520345127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 520345127 is about 22811.0746568416. The cubic root of 520345127 is about 804.3230176322.

The spelling of 520345127 in words is "five hundred twenty million, three hundred forty-five thousand, one hundred twenty-seven".