129900933 has 12 divisors (see below), whose sum is σ = 191175660. Its totient is φ = 84966336.

The previous prime is 129900923. The next prime is 129900959. The reversal of 129900933 is 339009921.

It can be written as a sum of positive squares in 2 ways, for example, as 51365889 + 78535044 = 7167^2 + 8862^2 .

It is not a de Polignac number, because 129900933 - 2¹⁰ = 129899909 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129900923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135688 + ... + 136641.

It is an arithmetic number, because the mean of its divisors is an integer number (15931305).

Almost surely, 2^129900933 is an apocalyptic number.

It is an amenable number.

129900933 is a deficient number, since it is larger than the sum of its proper divisors (61274727).

129900933 is a wasteful number, since it uses less digits than its factorization.

129900933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272388 (or 272385 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 129900933 is about 11397.4090476739. The cubic root of 129900933 is about 506.4509888724.

The spelling of 129900933 in words is "one hundred twenty-nine million, nine hundred thousand, nine hundred thirty-three".