512369939 has 2 divisors, whose sum is σ = 512369940. Its totient is φ = 512369938.

The previous prime is 512369881. The next prime is 512369981. The reversal of 512369939 is 939963215.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512369939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 512369893 and 512369902.

It is not a weakly prime, because it can be changed into another prime (512369339) 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, 256184969 + 256184970.

It is an arithmetic number, because the mean of its divisors is an integer number (256184970).

Almost surely, 2^512369939 is an apocalyptic number.

512369939 is a deficient number, since it is larger than the sum of its proper divisors (1).

512369939 is an equidigital number, since it uses as much as digits as its factorization.

512369939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 393660, while the sum is 47.

The square root of 512369939 is about 22635.5900961296. The cubic root of 512369939 is about 800.1926301758.

The spelling of 512369939 in words is "five hundred twelve million, three hundred sixty-nine thousand, nine hundred thirty-nine".