1705945049 has 2 divisors, whose sum is σ = 1705945050. Its totient is φ = 1705945048.

The previous prime is 1705945037. The next prime is 1705945061. The reversal of 1705945049 is 9405495071.

It is a balanced prime because it is at equal distance from previous prime (1705945037) and next prime (1705945061).

It can be written as a sum of positive squares in only one way, i.e., 1015569424 + 690375625 = 31868^2 + 26275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1705945049 is a prime.

It is a super-2 number, since 2×1705945049² = 5820497020415224802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1705945009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 852972524 + 852972525.

It is an arithmetic number, because the mean of its divisors is an integer number (852972525).

Almost surely, 2^1705945049 is an apocalyptic number.

It is an amenable number.

1705945049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1705945049 is an equidigital number, since it uses as much as digits as its factorization.

1705945049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 1705945049 is about 41303.0876448723. The cubic root of 1705945049 is about 1194.8728117524.

The spelling of 1705945049 in words is "one billion, seven hundred five million, nine hundred forty-five thousand, forty-nine".