694697141 has 2 divisors, whose sum is σ = 694697142. Its totient is φ = 694697140.

The previous prime is 694697137. The next prime is 694697147. The reversal of 694697141 is 141796496.

694697141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 627702916 + 66994225 = 25054^2 + 8185^2 .

It is a cyclic number.

It is not a de Polignac number, because 694697141 - 2² = 694697137 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (694697147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347348570 + 347348571.

It is an arithmetic number, because the mean of its divisors is an integer number (347348571).

Almost surely, 2^694697141 is an apocalyptic number.

It is an amenable number.

694697141 is a deficient number, since it is larger than the sum of its proper divisors (1).

694697141 is an equidigital number, since it uses as much as digits as its factorization.

694697141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 47.

The square root of 694697141 is about 26357.1079786839. The cubic root of 694697141 is about 885.6562066904.

The spelling of 694697141 in words is "six hundred ninety-four million, six hundred ninety-seven thousand, one hundred forty-one".