513381289 has 2 divisors, whose sum is σ = 513381290. Its totient is φ = 513381288.

The previous prime is 513381251. The next prime is 513381301. The reversal of 513381289 is 982183315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 384944400 + 128436889 = 19620^2 + 11333^2 .

It is a cyclic number.

It is not a de Polignac number, because 513381289 - 2¹¹ = 513379241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (513331289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256690644 + 256690645.

It is an arithmetic number, because the mean of its divisors is an integer number (256690645).

Almost surely, 2^513381289 is an apocalyptic number.

It is an amenable number.

513381289 is a deficient number, since it is larger than the sum of its proper divisors (1).

513381289 is an equidigital number, since it uses as much as digits as its factorization.

513381289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 513381289 is about 22657.9189026707. The cubic root of 513381289 is about 800.7187753632.

The spelling of 513381289 in words is "five hundred thirteen million, three hundred eighty-one thousand, two hundred eighty-nine".