340525121 has 2 divisors, whose sum is σ = 340525122. Its totient is φ = 340525120.

The previous prime is 340525043. The next prime is 340525123. The reversal of 340525121 is 121525043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312052225 + 28472896 = 17665^2 + 5336^2 .

It is a cyclic number.

It is not a de Polignac number, because 340525121 - 2¹⁰ = 340524097 is a prime.

Together with 340525123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (340525123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170262560 + 170262561.

It is an arithmetic number, because the mean of its divisors is an integer number (170262561).

Almost surely, 2^340525121 is an apocalyptic number.

It is an amenable number.

340525121 is a deficient number, since it is larger than the sum of its proper divisors (1).

340525121 is an equidigital number, since it uses as much as digits as its factorization.

340525121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 340525121 is about 18453.3227631232. The cubic root of 340525121 is about 698.3123432774.

The spelling of 340525121 in words is "three hundred forty million, five hundred twenty-five thousand, one hundred twenty-one".