342234521 has 2 divisors, whose sum is σ = 342234522. Its totient is φ = 342234520.

The previous prime is 342234499. The next prime is 342234547. The reversal of 342234521 is 125432243.

It is an a-pointer prime, because the next prime (342234547) can be obtained adding 342234521 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196308121 + 145926400 = 14011^2 + 12080^2 .

It is a cyclic number.

It is not a de Polignac number, because 342234521 - 2²² = 338040217 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (342234551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171117260 + 171117261.

It is an arithmetic number, because the mean of its divisors is an integer number (171117261).

Almost surely, 2^342234521 is an apocalyptic number.

It is an amenable number.

342234521 is a deficient number, since it is larger than the sum of its proper divisors (1).

342234521 is an equidigital number, since it uses as much as digits as its factorization.

342234521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 26.

The square root of 342234521 is about 18499.5816439183. The cubic root of 342234521 is about 699.4788781284.

Adding to 342234521 its reverse (125432243), we get a palindrome (467666764).

The spelling of 342234521 in words is "three hundred forty-two million, two hundred thirty-four thousand, five hundred twenty-one".