12909061 has 4 divisors (see below), whose sum is σ = 14082624. Its totient is φ = 11735500.

The previous prime is 12909047. The next prime is 12909077. The reversal of 12909061 is 16090921.

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 12909061 - 2⁹ = 12908549 is a prime.

It is a super-3 number, since 3×12909061³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12909461) 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, 586765 + ... + 586786.

It is an arithmetic number, because the mean of its divisors is an integer number (3520656).

Almost surely, 2^12909061 is an apocalyptic number.

12909061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12909061 is a deficient number, since it is larger than the sum of its proper divisors (1173563).

12909061 is a wasteful number, since it uses less digits than its factorization.

12909061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173562.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 12909061 is about 3592.9181732959. The cubic root of 12909061 is about 234.5839083373.

Adding to 12909061 its reverse (16090921), we get a palindrome (28999982).

The spelling of 12909061 in words is "twelve million, nine hundred nine thousand, sixty-one".