342257 has 2 divisors, whose sum is σ = 342258. Its totient is φ = 342256.

The previous prime is 342241. The next prime is 342281. The reversal of 342257 is 752243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323761 + 18496 = 569^2 + 136^2 .

It is a cyclic number.

It is not a de Polignac number, because 342257 - 2⁴ = 342241 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 3⁹ + 4⁸ + 2¹³ + 2¹⁷ + 5³ + 7⁶ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342257.

It is not a weakly prime, because it can be changed into another prime (342757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171128 + 171129.

It is an arithmetic number, because the mean of its divisors is an integer number (171129).

2³⁴²²⁵⁷ is an apocalyptic number.

It is an amenable number.

342257 is a deficient number, since it is larger than the sum of its proper divisors (1).

342257 is an equidigital number, since it uses as much as digits as its factorization.

342257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 23.

The square root of 342257 is about 585.0273497880. The cubic root of 342257 is about 69.9494192424.

The spelling of 342257 in words is "three hundred forty-two thousand, two hundred fifty-seven".