129893630 has 16 divisors (see below), whose sum is σ = 234131040. Its totient is φ = 51885792.

The previous prime is 129893629. The next prime is 129893641. The reversal of 129893630 is 36398921.

It is a super-2 number, since 2×129893630² = 33744710229153800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010 + ... + 16149.

It is an arithmetic number, because the mean of its divisors is an integer number (14633190).

Almost surely, 2^129893630 is an apocalyptic number.

129893630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129893630 is a deficient number, since it is larger than the sum of its proper divisors (104237410).

129893630 is a wasteful number, since it uses less digits than its factorization.

129893630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17923.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 129893630 is about 11397.0886633385. The cubic root of 129893630 is about 506.4414978426.

The spelling of 129893630 in words is "one hundred twenty-nine million, eight hundred ninety-three thousand, six hundred thirty".