12690129 has 8 divisors (see below), whose sum is σ = 17466112. Its totient is φ = 8187120.

The previous prime is 12690121. The next prime is 12690151. The reversal of 12690129 is 92109621.

It is a happy number.

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

It is not a de Polignac number, because 12690129 - 2³ = 12690121 is a prime.

It is a super-2 number, since 2×12690129² = 322078748073282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12690096 and 12690105.

It is not an unprimeable number, because it can be changed into a prime (12690121) 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, 68134 + ... + 68319.

It is an arithmetic number, because the mean of its divisors is an integer number (2183264).

Almost surely, 2^12690129 is an apocalyptic number.

It is an amenable number.

12690129 is a deficient number, since it is larger than the sum of its proper divisors (4775983).

12690129 is a wasteful number, since it uses less digits than its factorization.

12690129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136487.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 12690129 is about 3562.3207323317. The cubic root of 12690129 is about 233.2501932820.

The spelling of 12690129 in words is "twelve million, six hundred ninety thousand, one hundred twenty-nine".