340719149 has 2 divisors, whose sum is σ = 340719150. Its totient is φ = 340719148.

The previous prime is 340719101. The next prime is 340719227. The reversal of 340719149 is 941917043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 276157924 + 64561225 = 16618^2 + 8035^2 .

It is a cyclic number.

It is not a de Polignac number, because 340719149 - 2⁸ = 340718893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340719949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170359574 + 170359575.

It is an arithmetic number, because the mean of its divisors is an integer number (170359575).

Almost surely, 2^340719149 is an apocalyptic number.

It is an amenable number.

340719149 is a deficient number, since it is larger than the sum of its proper divisors (1).

340719149 is an equidigital number, since it uses as much as digits as its factorization.

340719149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 340719149 is about 18458.5792790236. The cubic root of 340719149 is about 698.4449486890. Note that the first 3 decimals are identical.

The spelling of 340719149 in words is "three hundred forty million, seven hundred nineteen thousand, one hundred forty-nine".