510129947 has 2 divisors, whose sum is σ = 510129948. Its totient is φ = 510129946.

The previous prime is 510129901. The next prime is 510129953. The reversal of 510129947 is 749921015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 510129947 - 2¹⁸ = 509867803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 510129947.

It is not a weakly prime, because it can be changed into another prime (510129547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255064973 + 255064974.

It is an arithmetic number, because the mean of its divisors is an integer number (255064974).

Almost surely, 2^510129947 is an apocalyptic number.

510129947 is a deficient number, since it is larger than the sum of its proper divisors (1).

510129947 is an equidigital number, since it uses as much as digits as its factorization.

510129947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 510129947 is about 22586.0564729658. The cubic root of 510129947 is about 799.0248258397.

The spelling of 510129947 in words is "five hundred ten million, one hundred twenty-nine thousand, nine hundred forty-seven".