129007471 has 2 divisors, whose sum is σ = 129007472. Its totient is φ = 129007470.

The previous prime is 129007447. The next prime is 129007517. The reversal of 129007471 is 174700921.

It is a weak prime.

It is an emirp because it is prime and its reverse (174700921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129007471 - 2²¹ = 126910319 is a prime.

It is a super-3 number, since 3×129007471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129007171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64503735 + 64503736.

It is an arithmetic number, because the mean of its divisors is an integer number (64503736).

Almost surely, 2^129007471 is an apocalyptic number.

129007471 is a deficient number, since it is larger than the sum of its proper divisors (1).

129007471 is an equidigital number, since it uses as much as digits as its factorization.

129007471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 129007471 is about 11358.1455792748. The cubic root of 129007471 is about 505.2871888677.

The spelling of 129007471 in words is "one hundred twenty-nine million, seven thousand, four hundred seventy-one".