12603091 has 2 divisors, whose sum is σ = 12603092. Its totient is φ = 12603090.

The previous prime is 12603089. The next prime is 12603109. The reversal of 12603091 is 19030621.

Together with next prime (12603109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12603091 - 2¹ = 12603089 is a prime.

Together with 12603089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12606091) 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 as a sum of consecutive naturals, namely, 6301545 + 6301546.

It is an arithmetic number, because the mean of its divisors is an integer number (6301546).

Almost surely, 2^12603091 is an apocalyptic number.

12603091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12603091 is an equidigital number, since it uses as much as digits as its factorization.

12603091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 12603091 is about 3550.0832384608. The cubic root of 12603091 is about 232.7157037752.

The spelling of 12603091 in words is "twelve million, six hundred three thousand, ninety-one".