1749523849 has 2 divisors, whose sum is σ = 1749523850. Its totient is φ = 1749523848.

The previous prime is 1749523837. The next prime is 1749523871. The reversal of 1749523849 is 9483259471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1710236025 + 39287824 = 41355^2 + 6268^2 .

It is a cyclic number.

It is not a de Polignac number, because 1749523849 - 2⁹ = 1749523337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1749523796 and 1749523805.

It is not a weakly prime, because it can be changed into another prime (1749523889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 874761924 + 874761925.

It is an arithmetic number, because the mean of its divisors is an integer number (874761925).

Almost surely, 2^1749523849 is an apocalyptic number.

It is an amenable number.

1749523849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1749523849 is an equidigital number, since it uses as much as digits as its factorization.

1749523849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 52.

The square root of 1749523849 is about 41827.3098465584. The cubic root of 1749523849 is about 1204.9618277308.

The spelling of 1749523849 in words is "one billion, seven hundred forty-nine million, five hundred twenty-three thousand, eight hundred forty-nine".