129900867 has 8 divisors (see below), whose sum is σ = 173258496. Its totient is φ = 86571912.

The previous prime is 129900857. The next prime is 129900871. The reversal of 129900867 is 768009921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129900867 - 2⁸ = 129900611 is a prime.

It is a super-3 number, since 3×129900867³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (129900857) 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, 7978 + ... + 17984.

It is an arithmetic number, because the mean of its divisors is an integer number (21657312).

Almost surely, 2^129900867 is an apocalyptic number.

129900867 is a deficient number, since it is larger than the sum of its proper divisors (43357629).

129900867 is a wasteful number, since it uses less digits than its factorization.

129900867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14337.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 129900867 is about 11397.4061522787. The cubic root of 129900867 is about 506.4509030999.

The spelling of 129900867 in words is "one hundred twenty-nine million, nine hundred thousand, eight hundred sixty-seven".