1709702149 has 2 divisors, whose sum is σ = 1709702150. Its totient is φ = 1709702148.

The previous prime is 1709702117. The next prime is 1709702153. The reversal of 1709702149 is 9412079071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1217661025 + 492041124 = 34895^2 + 22182^2 .

It is a cyclic number.

It is not a de Polignac number, because 1709702149 - 2⁵ = 1709702117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1709702749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 854851074 + 854851075.

It is an arithmetic number, because the mean of its divisors is an integer number (854851075).

Almost surely, 2^1709702149 is an apocalyptic number.

It is an amenable number.

1709702149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1709702149 is an equidigital number, since it uses as much as digits as its factorization.

1709702149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 1709702149 is about 41348.5447023230. The cubic root of 1709702149 is about 1195.7493474144.

The spelling of 1709702149 in words is "one billion, seven hundred nine million, seven hundred two thousand, one hundred forty-nine".