129050429 has 2 divisors, whose sum is σ = 129050430. Its totient is φ = 129050428.

The previous prime is 129050399. The next prime is 129050459. The reversal of 129050429 is 924050921.

It is a balanced prime because it is at equal distance from previous prime (129050399) and next prime (129050459).

It can be written as a sum of positive squares in only one way, i.e., 121771225 + 7279204 = 11035^2 + 2698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129050429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_7327373 and since 129050429 and 7327373 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 129050395 and 129050404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129050459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64525214 + 64525215.

It is an arithmetic number, because the mean of its divisors is an integer number (64525215).

Almost surely, 2^129050429 is an apocalyptic number.

It is an amenable number.

129050429 is a deficient number, since it is larger than the sum of its proper divisors (1).

129050429 is an equidigital number, since it uses as much as digits as its factorization.

129050429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 129050429 is about 11360.0364876175. The cubic root of 129050429 is about 505.3432675791.

The spelling of 129050429 in words is "one hundred twenty-nine million, fifty thousand, four hundred twenty-nine".