12930091 has 4 divisors (see below), whose sum is σ = 12943800. Its totient is φ = 12916384.

The previous prime is 12930079. The next prime is 12930107. The reversal of 12930091 is 19003921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19003921 = 4241 ⋅4481.

It is a cyclic number.

It is not a de Polignac number, because 12930091 - 2⁵ = 12930059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12930011) 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, 5326 + ... + 7363.

It is an arithmetic number, because the mean of its divisors is an integer number (3235950).

Almost surely, 2^12930091 is an apocalyptic number.

12930091 is a deficient number, since it is larger than the sum of its proper divisors (13709).

12930091 is a wasteful number, since it uses less digits than its factorization.

12930091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13708.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 12930091 is about 3595.8435727935. The cubic root of 12930091 is about 234.7112251909.

The spelling of 12930091 in words is "twelve million, nine hundred thirty thousand, ninety-one".