129560479 has 2 divisors, whose sum is σ = 129560480. Its totient is φ = 129560478.

The previous prime is 129560467. The next prime is 129560521. The reversal of 129560479 is 974065921.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129560479 - 2⁹ = 129559967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129560579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64780239 + 64780240.

It is an arithmetic number, because the mean of its divisors is an integer number (64780240).

Almost surely, 2^129560479 is an apocalyptic number.

129560479 is a deficient number, since it is larger than the sum of its proper divisors (1).

129560479 is an equidigital number, since it uses as much as digits as its factorization.

129560479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 129560479 is about 11382.4636612642. The cubic root of 129560479 is about 506.0081536699.

The spelling of 129560479 in words is "one hundred twenty-nine million, five hundred sixty thousand, four hundred seventy-nine".