340121055 has 32 divisors (see below), whose sum is σ = 554964480. Its totient is φ = 177828480.

The previous prime is 340121053. The next prime is 340121059. The reversal of 340121055 is 550121043.

It is not a de Polignac number, because 340121055 - 2¹ = 340121053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340121053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 459876 + ... + 460614.

It is an arithmetic number, because the mean of its divisors is an integer number (17342640).

Almost surely, 2^340121055 is an apocalyptic number.

340121055 is a deficient number, since it is larger than the sum of its proper divisors (214843425).

340121055 is a wasteful number, since it uses less digits than its factorization.

340121055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 340121055 is about 18442.3711870247. The cubic root of 340121055 is about 698.0360289063.

Adding to 340121055 its reverse (550121043), we get a palindrome (890242098).

The spelling of 340121055 in words is "three hundred forty million, one hundred twenty-one thousand, fifty-five".