3985175549 has 2 divisors, whose sum is σ = 3985175550. Its totient is φ = 3985175548.

The previous prime is 3985175503. The next prime is 3985175561. The reversal of 3985175549 is 9455715893.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2524560025 + 1460615524 = 50245^2 + 38218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3985175549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3985175494 and 3985175503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3985175749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1992587774 + 1992587775.

It is an arithmetic number, because the mean of its divisors is an integer number (1992587775).

Almost surely, 2^3985175549 is an apocalyptic number.

It is an amenable number.

3985175549 is a deficient number, since it is larger than the sum of its proper divisors (1).

3985175549 is an equidigital number, since it uses as much as digits as its factorization.

3985175549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804000, while the sum is 56.

The square root of 3985175549 is about 63128.2468392716. The cubic root of 3985175549 is about 1585.4375952768.

The spelling of 3985175549 in words is "three billion, nine hundred eighty-five million, one hundred seventy-five thousand, five hundred forty-nine".