1214112139 has 2 divisors, whose sum is σ = 1214112140. Its totient is φ = 1214112138.

The previous prime is 1214112013. The next prime is 1214112157. The reversal of 1214112139 is 9312114121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1214112139 - 2¹¹ = 1214110091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1214112539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607056069 + 607056070.

It is an arithmetic number, because the mean of its divisors is an integer number (607056070).

Almost surely, 2^1214112139 is an apocalyptic number.

1214112139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214112139 is an equidigital number, since it uses as much as digits as its factorization.

1214112139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 25.

The square root of 1214112139 is about 34844.1119703172. Note that the first 3 decimals coincide. The cubic root of 1214112139 is about 1066.8080081041.

The spelling of 1214112139 in words is "one billion, two hundred fourteen million, one hundred twelve thousand, one hundred thirty-nine".