12900129 has 16 divisors (see below), whose sum is σ = 19202304. Its totient is φ = 7635600.

The previous prime is 12900103. The next prime is 12900131. The reversal of 12900129 is 92100921.

It is not a de Polignac number, because 12900129 - 2⁷ = 12900001 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12900099 and 12900108.

It is not an unprimeable number, because it can be changed into a prime (12900149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3127 + ... + 5964.

It is an arithmetic number, because the mean of its divisors is an integer number (1200144).

Almost surely, 2^12900129 is an apocalyptic number.

It is an amenable number.

12900129 is a deficient number, since it is larger than the sum of its proper divisors (6302175).

12900129 is a wasteful number, since it uses less digits than its factorization.

12900129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9148.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 12900129 is about 3591.6749574537. The cubic root of 12900129 is about 234.5297916484.

It can be divided in two parts, 12900 and 129, that multiplied together give a square (1664100 = 1290²).

The spelling of 12900129 in words is "twelve million, nine hundred thousand, one hundred twenty-nine".