129466853 has 2 divisors, whose sum is σ = 129466854. Its totient is φ = 129466852.

The previous prime is 129466837. The next prime is 129466873. The reversal of 129466853 is 358664921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120604324 + 8862529 = 10982^2 + 2977^2 .

It is a cyclic number.

It is not a de Polignac number, because 129466853 - 2⁴ = 129466837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129466873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64733426 + 64733427.

It is an arithmetic number, because the mean of its divisors is an integer number (64733427).

Almost surely, 2^129466853 is an apocalyptic number.

It is an amenable number.

129466853 is a deficient number, since it is larger than the sum of its proper divisors (1).

129466853 is an equidigital number, since it uses as much as digits as its factorization.

129466853 is an evil number, because the sum of its binary digits is even.

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

The square root of 129466853 is about 11378.3501879666. The cubic root of 129466853 is about 505.8862365127.

The spelling of 129466853 in words is "one hundred twenty-nine million, four hundred sixty-six thousand, eight hundred fifty-three".