129869230 has 16 divisors (see below), whose sum is σ = 241305984. Its totient is φ = 50271840.

The previous prime is 129869227. The next prime is 129869231. The reversal of 129869230 is 32968921.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129869231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209157 + ... + 209776.

It is an arithmetic number, because the mean of its divisors is an integer number (15081624).

Almost surely, 2^129869230 is an apocalyptic number.

129869230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129869230 is a deficient number, since it is larger than the sum of its proper divisors (111436754).

129869230 is a wasteful number, since it uses less digits than its factorization.

129869230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418971.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 129869230 is about 11396.0181642537. The cubic root of 129869230 is about 506.4097848520.

The spelling of 129869230 in words is "one hundred twenty-nine million, eight hundred sixty-nine thousand, two hundred thirty".