340638113 has 2 divisors, whose sum is σ = 340638114. Its totient is φ = 340638112.

The previous prime is 340638107. The next prime is 340638143. The reversal of 340638113 is 311836043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240498064 + 100140049 = 15508^2 + 10007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340638113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (340638143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170319056 + 170319057.

It is an arithmetic number, because the mean of its divisors is an integer number (170319057).

Almost surely, 2^340638113 is an apocalyptic number.

It is an amenable number.

340638113 is a deficient number, since it is larger than the sum of its proper divisors (1).

340638113 is an equidigital number, since it uses as much as digits as its factorization.

340638113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 340638113 is about 18456.3840716431. The cubic root of 340638113 is about 698.3895720219.

The spelling of 340638113 in words is "three hundred forty million, six hundred thirty-eight thousand, one hundred thirteen".