1694734109 has 2 divisors, whose sum is σ = 1694734110. Its totient is φ = 1694734108.

The previous prime is 1694734061. The next prime is 1694734169. The reversal of 1694734109 is 9014374961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1281425209 + 413308900 = 35797^2 + 20330^2 .

It is a cyclic number.

It is not a de Polignac number, because 1694734109 - 2¹² = 1694730013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1694734109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1694734169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 847367054 + 847367055.

It is an arithmetic number, because the mean of its divisors is an integer number (847367055).

Almost surely, 2^1694734109 is an apocalyptic number.

It is an amenable number.

1694734109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1694734109 is an equidigital number, since it uses as much as digits as its factorization.

1694734109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 1694734109 is about 41167.1484195833. The cubic root of 1694734109 is about 1192.2496129529.

The spelling of 1694734109 in words is "one billion, six hundred ninety-four million, seven hundred thirty-four thousand, one hundred nine".