342245251 has 2 divisors, whose sum is σ = 342245252. Its totient is φ = 342245250.

The previous prime is 342245249. The next prime is 342245261. The reversal of 342245251 is 152542243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 342245251 - 2¹ = 342245249 is a prime.

Together with 342245249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (342245231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171122625 + 171122626.

It is an arithmetic number, because the mean of its divisors is an integer number (171122626).

Almost surely, 2^342245251 is an apocalyptic number.

342245251 is a deficient number, since it is larger than the sum of its proper divisors (1).

342245251 is an equidigital number, since it uses as much as digits as its factorization.

342245251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9600, while the sum is 28.

The square root of 342245251 is about 18499.8716482034. The cubic root of 342245251 is about 699.4861882520.

Adding to 342245251 its reverse (152542243), we get a palindrome (494787494).

The spelling of 342245251 in words is "three hundred forty-two million, two hundred forty-five thousand, two hundred fifty-one".