5129647 has 2 divisors, whose sum is σ = 5129648. Its totient is φ = 5129646.

The previous prime is 5129617. The next prime is 5129659. The reversal of 5129647 is 7469215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5129647 - 2¹⁵ = 5096879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5129617) 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, 2564823 + 2564824.

It is an arithmetic number, because the mean of its divisors is an integer number (2564824).

Almost surely, 2^5129647 is an apocalyptic number.

5129647 is a deficient number, since it is larger than the sum of its proper divisors (1).

5129647 is an equidigital number, since it uses as much as digits as its factorization.

5129647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 5129647 is about 2264.8724025870. The cubic root of 5129647 is about 172.4629564089.

It can be divided in two parts, 5129 and 647, that added together give a square (5776 = 76²).

The spelling of 5129647 in words is "five million, one hundred twenty-nine thousand, six hundred forty-seven".