129350205 has 12 divisors (see below), whose sum is σ = 224207100. Its totient is φ = 68986752.

The previous prime is 129350189. The next prime is 129350227. The reversal of 129350205 is 502053921.

It can be written as a sum of positive squares in 2 ways, for example, as 77898276 + 51451929 = 8826^2 + 7173^2 .

It is not a de Polignac number, because 129350205 - 2⁴ = 129350189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1437180 + ... + 1437269.

It is an arithmetic number, because the mean of its divisors is an integer number (18683925).

Almost surely, 2^129350205 is an apocalyptic number.

129350205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129350205 is a deficient number, since it is larger than the sum of its proper divisors (94856895).

129350205 is a wasteful number, since it uses less digits than its factorization.

129350205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874460 (or 2874457 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 129350205 is about 11373.2231579267. The cubic root of 129350205 is about 505.7342584894.

The spelling of 129350205 in words is "one hundred twenty-nine million, three hundred fifty thousand, two hundred five".