129486563 has 2 divisors, whose sum is σ = 129486564. Its totient is φ = 129486562.

The previous prime is 129486559. The next prime is 129486583. The reversal of 129486563 is 365684921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129486563 - 2² = 129486559 is a prime.

It is not a weakly prime, because it can be changed into another prime (129486583) 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, 64743281 + 64743282.

It is an arithmetic number, because the mean of its divisors is an integer number (64743282).

Almost surely, 2^129486563 is an apocalyptic number.

129486563 is a deficient number, since it is larger than the sum of its proper divisors (1).

129486563 is an equidigital number, since it uses as much as digits as its factorization.

129486563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 44.

The square root of 129486563 is about 11379.2162735401. The cubic root of 129486563 is about 505.9119072064.

The spelling of 129486563 in words is "one hundred twenty-nine million, four hundred eighty-six thousand, five hundred sixty-three".