129468349 has 2 divisors, whose sum is σ = 129468350. Its totient is φ = 129468348.

The previous prime is 129468343. The next prime is 129468371. The reversal of 129468349 is 943864921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105945849 + 23522500 = 10293^2 + 4850^2 .

It is a cyclic number.

It is not a de Polignac number, because 129468349 - 2³ = 129468341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129468299 and 129468308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129468341) 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, 64734174 + 64734175.

It is an arithmetic number, because the mean of its divisors is an integer number (64734175).

Almost surely, 2^129468349 is an apocalyptic number.

It is an amenable number.

129468349 is a deficient number, since it is larger than the sum of its proper divisors (1).

129468349 is an equidigital number, since it uses as much as digits as its factorization.

129468349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 46.

The square root of 129468349 is about 11378.4159266569. The cubic root of 129468349 is about 505.8881850241. Note that the first 3 decimals are identical.

The spelling of 129468349 in words is "one hundred twenty-nine million, four hundred sixty-eight thousand, three hundred forty-nine".