2146939 has 2 divisors, whose sum is σ = 2146940. Its totient is φ = 2146938.

The previous prime is 2146909. The next prime is 2146979. The reversal of 2146939 is 9396412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2146939 - 2²¹ = 49787 is a prime.

2146939 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2146909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073469 + 1073470.

It is an arithmetic number, because the mean of its divisors is an integer number (1073470).

2^2146939 is an apocalyptic number.

2146939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2146939 is an equidigital number, since it uses as much as digits as its factorization.

2146939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 2146939 is about 1465.2436657430. The cubic root of 2146939 is about 129.0050075175.

The spelling of 2146939 in words is "two million, one hundred forty-six thousand, nine hundred thirty-nine".