12139051 has 2 divisors, whose sum is σ = 12139052. Its totient is φ = 12139050.

The previous prime is 12139033. The next prime is 12139103. The reversal of 12139051 is 15093121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12139051 - 2¹¹ = 12137003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12139021) 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 as a sum of consecutive naturals, namely, 6069525 + 6069526.

It is an arithmetic number, because the mean of its divisors is an integer number (6069526).

Almost surely, 2^12139051 is an apocalyptic number.

12139051 is a deficient number, since it is larger than the sum of its proper divisors (1).

12139051 is an equidigital number, since it uses as much as digits as its factorization.

12139051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 12139051 is about 3484.1140911285. The cubic root of 12139051 is about 229.8237528164.

The spelling of 12139051 in words is "twelve million, one hundred thirty-nine thousand, fifty-one".