342312251 has 2 divisors, whose sum is σ = 342312252. Its totient is φ = 342312250.

The previous prime is 342312247. The next prime is 342312283. The reversal of 342312251 is 152213243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 342312251 - 2² = 342312247 is a prime.

It is a super-3 number, since 3×342312251³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (342314251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171156125 + 171156126.

It is an arithmetic number, because the mean of its divisors is an integer number (171156126).

Almost surely, 2^342312251 is an apocalyptic number.

342312251 is a deficient number, since it is larger than the sum of its proper divisors (1).

342312251 is an equidigital number, since it uses as much as digits as its factorization.

342312251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 342312251 is about 18501.6823829618. The cubic root of 342312251 is about 699.5318304891.

Adding to 342312251 its reverse (152213243), we get a palindrome (494525494).

The spelling of 342312251 in words is "three hundred forty-two million, three hundred twelve thousand, two hundred fifty-one".