12990511 has 4 divisors (see below), whose sum is σ = 13109800. Its totient is φ = 12871224.

The previous prime is 12990503. The next prime is 12990541. The reversal of 12990511 is 11509921.

12990511 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.

It is a cyclic number.

It is not a de Polignac number, because 12990511 - 2³ = 12990503 is a prime.

It is a super-2 number, since 2×12990511² = 337506752082242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12990511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12990541) 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, 59481 + ... + 59698.

It is an arithmetic number, because the mean of its divisors is an integer number (3277450).

Almost surely, 2^12990511 is an apocalyptic number.

12990511 is a deficient number, since it is larger than the sum of its proper divisors (119289).

12990511 is a wasteful number, since it uses less digits than its factorization.

12990511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119288.

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 12990511 is about 3604.2351477116. The cubic root of 12990511 is about 235.0762450652.

The spelling of 12990511 in words is "twelve million, nine hundred ninety thousand, five hundred eleven".