342517457 has 2 divisors, whose sum is σ = 342517458. Its totient is φ = 342517456.

The previous prime is 342517453. The next prime is 342517471. The reversal of 342517457 is 754715243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272778256 + 69739201 = 16516^2 + 8351^2 .

It is a cyclic number.

It is not a de Polignac number, because 342517457 - 2² = 342517453 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 342517457.

It is not a weakly prime, because it can be changed into another prime (342517451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171258728 + 171258729.

It is an arithmetic number, because the mean of its divisors is an integer number (171258729).

Almost surely, 2^342517457 is an apocalyptic number.

It is an amenable number.

342517457 is a deficient number, since it is larger than the sum of its proper divisors (1).

342517457 is an equidigital number, since it uses as much as digits as its factorization.

342517457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117600, while the sum is 38.

The square root of 342517457 is about 18507.2271558978. The cubic root of 342517457 is about 699.6715853997.

The spelling of 342517457 in words is "three hundred forty-two million, five hundred seventeen thousand, four hundred fifty-seven".