129763129 has 2 divisors, whose sum is σ = 129763130. Its totient is φ = 129763128.

The previous prime is 129763111. The next prime is 129763147. The reversal of 129763129 is 921367921.

It is a balanced prime because it is at equal distance from previous prime (129763111) and next prime (129763147).

It can be written as a sum of positive squares in only one way, i.e., 90725625 + 39037504 = 9525^2 + 6248^2 .

It is a cyclic number.

It is not a de Polignac number, because 129763129 - 2⁷ = 129763001 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 129763091 and 129763100.

It is not a weakly prime, because it can be changed into another prime (129760129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64881564 + 64881565.

It is an arithmetic number, because the mean of its divisors is an integer number (64881565).

Almost surely, 2^129763129 is an apocalyptic number.

It is an amenable number.

129763129 is a deficient number, since it is larger than the sum of its proper divisors (1).

129763129 is an equidigital number, since it uses as much as digits as its factorization.

129763129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 40.

The square root of 129763129 is about 11391.3620344540. The cubic root of 129763129 is about 506.2718378224.

The spelling of 129763129 in words is "one hundred twenty-nine million, seven hundred sixty-three thousand, one hundred twenty-nine".