2146139 has 2 divisors, whose sum is σ = 2146140. Its totient is φ = 2146138.

The previous prime is 2146103. The next prime is 2146141. The reversal of 2146139 is 9316412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2146139 - 2¹² = 2142043 is a prime.

Together with 2146141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2146159) 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, 1073069 + 1073070.

It is an arithmetic number, because the mean of its divisors is an integer number (1073070).

2^2146139 is an apocalyptic number.

2146139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2146139 is an equidigital number, since it uses as much as digits as its factorization.

2146139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

The square root of 2146139 is about 1464.9706481701. The cubic root of 2146139 is about 128.9889820929.

The spelling of 2146139 in words is "two million, one hundred forty-six thousand, one hundred thirty-nine".