340532057 has 2 divisors, whose sum is σ = 340532058. Its totient is φ = 340532056.

The previous prime is 340532047. The next prime is 340532081. The reversal of 340532057 is 750235043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313325401 + 27206656 = 17701^2 + 5216^2 .

It is a cyclic number.

It is not a de Polignac number, because 340532057 - 2¹⁸ = 340269913 is a prime.

It is not a weakly prime, because it can be changed into another prime (340532047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170266028 + 170266029.

It is an arithmetic number, because the mean of its divisors is an integer number (170266029).

Almost surely, 2^340532057 is an apocalyptic number.

It is an amenable number.

340532057 is a deficient number, since it is larger than the sum of its proper divisors (1).

340532057 is an equidigital number, since it uses as much as digits as its factorization.

340532057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 340532057 is about 18453.5106957999. The cubic root of 340532057 is about 698.3170844465.

The spelling of 340532057 in words is "three hundred forty million, five hundred thirty-two thousand, fifty-seven".