129332249 has 2 divisors, whose sum is σ = 129332250. Its totient is φ = 129332248.

The previous prime is 129332237. The next prime is 129332267. The reversal of 129332249 is 942233921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100902025 + 28430224 = 10045^2 + 5332^2 .

It is a cyclic number.

It is not a de Polignac number, because 129332249 - 2⁴ = 129332233 is a prime.

It is not a weakly prime, because it can be changed into another prime (129331249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64666124 + 64666125.

It is an arithmetic number, because the mean of its divisors is an integer number (64666125).

Almost surely, 2^129332249 is an apocalyptic number.

It is an amenable number.

129332249 is a deficient number, since it is larger than the sum of its proper divisors (1).

129332249 is an equidigital number, since it uses as much as digits as its factorization.

129332249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 35.

The square root of 129332249 is about 11372.4337324954. The cubic root of 129332249 is about 505.7108559120.

The spelling of 129332249 in words is "one hundred twenty-nine million, three hundred thirty-two thousand, two hundred forty-nine".