129306230 has 16 divisors (see below), whose sum is σ = 242871264. Its totient is φ = 49473600.

The previous prime is 129306227. The next prime is 129306241. The reversal of 129306230 is 32603921.

It is a super-2 number, since 2×129306230² = 33440202233625800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 129306230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280871 + ... + 281330.

It is an arithmetic number, because the mean of its divisors is an integer number (15179454).

Almost surely, 2^129306230 is an apocalyptic number.

129306230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129306230 is a deficient number, since it is larger than the sum of its proper divisors (113565034).

129306230 is a wasteful number, since it uses less digits than its factorization.

129306230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562231.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 129306230 is about 11371.2897245651. The cubic root of 129306230 is about 505.6769407482.

The spelling of 129306230 in words is "one hundred twenty-nine million, three hundred six thousand, two hundred thirty".