12990241 has 4 divisors (see below), whose sum is σ = 14171184. Its totient is φ = 11809300.

The previous prime is 12990233. The next prime is 12990253. The reversal of 12990241 is 14209921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12990241 - 2³ = 12990233 is a prime.

It is a super-2 number, since 2×12990241² = 337492722476162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12990221) 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 3 ways as a sum of consecutive naturals, for example, 590455 + ... + 590476.

It is an arithmetic number, because the mean of its divisors is an integer number (3542796).

Almost surely, 2^12990241 is an apocalyptic number.

12990241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12990241 is a deficient number, since it is larger than the sum of its proper divisors (1180943).

12990241 is a wasteful number, since it uses less digits than its factorization.

12990241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180942.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 12990241 is about 3604.1976915813. The cubic root of 12990241 is about 235.0746164142.

It can be divided in two parts, 12990 and 241, that added together give a palindrome (13231).

The spelling of 12990241 in words is "twelve million, nine hundred ninety thousand, two hundred forty-one".