10197945 has 12 divisors (see below), whose sum is σ = 17676516. Its totient is φ = 5438880.

The previous prime is 10197917. The next prime is 10197949. The reversal of 10197945 is 54979101.

10197945 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 3164841 + 7033104 = 1779^2 + 2652^2 .

It is not a de Polignac number, because 10197945 - 2⁸ = 10197689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10197949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113266 + ... + 113355.

It is an arithmetic number, because the mean of its divisors is an integer number (1473043).

Almost surely, 2^10197945 is an apocalyptic number.

10197945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10197945 is a deficient number, since it is larger than the sum of its proper divisors (7478571).

10197945 is a wasteful number, since it uses less digits than its factorization.

10197945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226632 (or 226629 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 10197945 is about 3193.4221455987. The cubic root of 10197945 is about 216.8557232186.

The spelling of 10197945 in words is "ten million, one hundred ninety-seven thousand, nine hundred forty-five".