12990029 has 4 divisors (see below), whose sum is σ = 13989276. Its totient is φ = 11990784.

The previous prime is 12990013. The next prime is 12990041. The reversal of 12990029 is 92009921.

12990029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92009921 = 5711 ⋅16111.

It can be written as a sum of positive squares in 2 ways, for example, as 1612900 + 11377129 = 1270^2 + 3373^2 .

It is not a de Polignac number, because 12990029 - 2⁴ = 12990013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12989977 and 12990004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12990059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499604 + ... + 499629.

It is an arithmetic number, because the mean of its divisors is an integer number (3497319).

Almost surely, 2^12990029 is an apocalyptic number.

It is an amenable number.

12990029 is a deficient number, since it is larger than the sum of its proper divisors (999247).

12990029 is an equidigital number, since it uses as much as digits as its factorization.

12990029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999246.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 12990029 is about 3604.1682813099. The cubic root of 12990029 is about 235.0733376057.

The spelling of 12990029 in words is "twelve million, nine hundred ninety thousand, twenty-nine".