678835141 has 2 divisors, whose sum is σ = 678835142. Its totient is φ = 678835140.

The previous prime is 678835121. The next prime is 678835153. The reversal of 678835141 is 141538876.

678835141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 609596100 + 69239041 = 24690^2 + 8321^2 .

It is a cyclic number.

It is not a de Polignac number, because 678835141 - 2⁷ = 678835013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (678835111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339417570 + 339417571.

It is an arithmetic number, because the mean of its divisors is an integer number (339417571).

Almost surely, 2^678835141 is an apocalyptic number.

It is an amenable number.

678835141 is a deficient number, since it is larger than the sum of its proper divisors (1).

678835141 is an equidigital number, since it uses as much as digits as its factorization.

678835141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 43.

The square root of 678835141 is about 26054.4648956758. The cubic root of 678835141 is about 878.8635213010.

It can be divided in two parts, 678835 and 141, that added together give a square (678976 = 824²).

The spelling of 678835141 in words is "six hundred seventy-eight million, eight hundred thirty-five thousand, one hundred forty-one".