342210257 has 2 divisors, whose sum is σ = 342210258. Its totient is φ = 342210256.

The previous prime is 342210191. The next prime is 342210293. The reversal of 342210257 is 752012243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342102016 + 108241 = 18496^2 + 329^2 .

It is a cyclic number.

It is not a de Polignac number, because 342210257 - 2¹⁰ = 342209233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (342216257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171105128 + 171105129.

It is an arithmetic number, because the mean of its divisors is an integer number (171105129).

Almost surely, 2^342210257 is an apocalyptic number.

It is an amenable number.

342210257 is a deficient number, since it is larger than the sum of its proper divisors (1).

342210257 is an equidigital number, since it uses as much as digits as its factorization.

342210257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 342210257 is about 18498.9258336802. The cubic root of 342210257 is about 699.4623470115.

The spelling of 342210257 in words is "three hundred forty-two million, two hundred ten thousand, two hundred fifty-seven".