12926131 has 4 divisors (see below), whose sum is σ = 12942072. Its totient is φ = 12910192.

The previous prime is 12926129. The next prime is 12926143. The reversal of 12926131 is 13162921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13162921 = 53 ⋅248357.

It is a cyclic number.

It is not a de Polignac number, because 12926131 - 2¹ = 12926129 is a prime.

It is a super-2 number, since 2×12926131² = 334169725258322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12926096 and 12926105.

It is not an unprimeable number, because it can be changed into a prime (12926231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6685 + ... + 8398.

It is an arithmetic number, because the mean of its divisors is an integer number (3235518).

Almost surely, 2^12926131 is an apocalyptic number.

12926131 is a deficient number, since it is larger than the sum of its proper divisors (15941).

12926131 is an equidigital number, since it uses as much as digits as its factorization.

12926131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15940.

The product of its digits is 648, while the sum is 25.

The square root of 12926131 is about 3595.2928948835. The cubic root of 12926131 is about 234.6872616742.

The spelling of 12926131 in words is "twelve million, nine hundred twenty-six thousand, one hundred thirty-one".