10209245 has 4 divisors (see below), whose sum is σ = 12251100. Its totient is φ = 8167392.

The previous prime is 10209233. The next prime is 10209281. The reversal of 10209245 is 54290201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2696164 + 7513081 = 1642^2 + 2741^2 .

It is a cyclic number.

It is not a de Polignac number, because 10209245 - 2⁴ = 10209229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10209245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020920 + ... + 1020929.

It is an arithmetic number, because the mean of its divisors is an integer number (3062775).

Almost surely, 2^10209245 is an apocalyptic number.

It is an amenable number.

10209245 is a deficient number, since it is larger than the sum of its proper divisors (2041855).

10209245 is an equidigital number, since it uses as much as digits as its factorization.

10209245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041854.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 10209245 is about 3195.1909176135. The cubic root of 10209245 is about 216.9357904980.

Adding to 10209245 its reverse (54290201), we get a palindrome (64499446).

The spelling of 10209245 in words is "ten million, two hundred nine thousand, two hundred forty-five".