513392387 has 2 divisors, whose sum is σ = 513392388. Its totient is φ = 513392386.

The previous prime is 513392377. The next prime is 513392431. The reversal of 513392387 is 783293315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513392387 - 2⁴ = 513392371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (513392377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256696193 + 256696194.

It is an arithmetic number, because the mean of its divisors is an integer number (256696194).

Almost surely, 2^513392387 is an apocalyptic number.

513392387 is a deficient number, since it is larger than the sum of its proper divisors (1).

513392387 is an equidigital number, since it uses as much as digits as its factorization.

513392387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 41.

The square root of 513392387 is about 22658.1638046864. The cubic root of 513392387 is about 800.7245451573.

The spelling of 513392387 in words is "five hundred thirteen million, three hundred ninety-two thousand, three hundred eighty-seven".