2040012659 has 2 divisors, whose sum is σ = 2040012660. Its totient is φ = 2040012658.

The previous prime is 2040012641. The next prime is 2040012661. The reversal of 2040012659 is 9562100402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2040012659 is a prime.

Together with 2040012661, 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 (2040012059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020006329 + 1020006330.

It is an arithmetic number, because the mean of its divisors is an integer number (1020006330).

Almost surely, 2^2040012659 is an apocalyptic number.

2040012659 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040012659 is an equidigital number, since it uses as much as digits as its factorization.

2040012659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2040012659 is about 45166.4992998129. The cubic root of 2040012659 is about 1268.2677644324.

The spelling of 2040012659 in words is "two billion, forty million, twelve thousand, six hundred fifty-nine".