340120057 has 2 divisors, whose sum is σ = 340120058. Its totient is φ = 340120056.

The previous prime is 340120013. The next prime is 340120069. The reversal of 340120057 is 750021043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 299428416 + 40691641 = 17304^2 + 6379^2 .

It is a cyclic number.

It is not a de Polignac number, because 340120057 - 2²⁷ = 205902329 is a prime.

It is not a weakly prime, because it can be changed into another prime (340120457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170060028 + 170060029.

It is an arithmetic number, because the mean of its divisors is an integer number (170060029).

Almost surely, 2^340120057 is an apocalyptic number.

It is an amenable number.

340120057 is a deficient number, since it is larger than the sum of its proper divisors (1).

340120057 is an equidigital number, since it uses as much as digits as its factorization.

340120057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 340120057 is about 18442.3441297466. The cubic root of 340120057 is about 698.0353461683.

The spelling of 340120057 in words is "three hundred forty million, one hundred twenty thousand, fifty-seven".