129480847 has 2 divisors, whose sum is σ = 129480848. Its totient is φ = 129480846.

The previous prime is 129480803. The next prime is 129480859. The reversal of 129480847 is 748084921.

It is a strong prime.

It is an emirp because it is prime and its reverse (748084921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129480847 - 2⁷ = 129480719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129483847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64740423 + 64740424.

It is an arithmetic number, because the mean of its divisors is an integer number (64740424).

Almost surely, 2^129480847 is an apocalyptic number.

129480847 is a deficient number, since it is larger than the sum of its proper divisors (1).

129480847 is an equidigital number, since it uses as much as digits as its factorization.

129480847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 129480847 is about 11378.9651111162. The cubic root of 129480847 is about 505.9044628432.

The spelling of 129480847 in words is "one hundred twenty-nine million, four hundred eighty thousand, eight hundred forty-seven".