2146694239 has 2 divisors, whose sum is σ = 2146694240. Its totient is φ = 2146694238.

The previous prime is 2146694191. The next prime is 2146694243. The reversal of 2146694239 is 9324966412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2146694239 - 2⁹ = 2146693727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2146694269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073347119 + 1073347120.

It is an arithmetic number, because the mean of its divisors is an integer number (1073347120).

Almost surely, 2^2146694239 is an apocalyptic number.

2146694239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2146694239 is an equidigital number, since it uses as much as digits as its factorization.

2146694239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 46.

The square root of 2146694239 is about 46332.4318269611. The cubic root of 2146694239 is about 1290.0010494152.

The spelling of 2146694239 in words is "two billion, one hundred forty-six million, six hundred ninety-four thousand, two hundred thirty-nine".