12139103 has 2 divisors, whose sum is σ = 12139104. Its totient is φ = 12139102.

The previous prime is 12139051. The next prime is 12139109. The reversal of 12139103 is 30193121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12139103 - 2¹⁸ = 11876959 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12139109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6069551 + 6069552.

It is an arithmetic number, because the mean of its divisors is an integer number (6069552).

Almost surely, 2^12139103 is an apocalyptic number.

12139103 is a deficient number, since it is larger than the sum of its proper divisors (1).

12139103 is an equidigital number, since it uses as much as digits as its factorization.

12139103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 12139103 is about 3484.1215535627. The cubic root of 12139103 is about 229.8240809809.

The spelling of 12139103 in words is "twelve million, one hundred thirty-nine thousand, one hundred three".