351242543 has 2 divisors, whose sum is σ = 351242544. Its totient is φ = 351242542.

The previous prime is 351242539. The next prime is 351242579. The reversal of 351242543 is 345242153.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 351242543 - 2² = 351242539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351242513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175621271 + 175621272.

It is an arithmetic number, because the mean of its divisors is an integer number (175621272).

Almost surely, 2^351242543 is an apocalyptic number.

351242543 is a deficient number, since it is larger than the sum of its proper divisors (1).

351242543 is an equidigital number, since it uses as much as digits as its factorization.

351242543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 29.

The square root of 351242543 is about 18741.4658711639. The cubic root of 351242543 is about 705.5628474728.

Adding to 351242543 its reverse (345242153), we get a palindrome (696484696).

The spelling of 351242543 in words is "three hundred fifty-one million, two hundred forty-two thousand, five hundred forty-three".