626942143 has 2 divisors, whose sum is σ = 626942144. Its totient is φ = 626942142.

The previous prime is 626942131. The next prime is 626942149. The reversal of 626942143 is 341249626.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 626942143 - 2⁹ = 626941631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (626942149) 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, 313471071 + 313471072.

It is an arithmetic number, because the mean of its divisors is an integer number (313471072).

Almost surely, 2^626942143 is an apocalyptic number.

626942143 is a deficient number, since it is larger than the sum of its proper divisors (1).

626942143 is an equidigital number, since it uses as much as digits as its factorization.

626942143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 37.

The square root of 626942143 is about 25038.8127314376. The cubic root of 626942143 is about 855.8726623515.

The spelling of 626942143 in words is "six hundred twenty-six million, nine hundred forty-two thousand, one hundred forty-three".