10245215 has 4 divisors (see below), whose sum is σ = 12294264. Its totient is φ = 8196168.

The previous prime is 10245211. The next prime is 10245239. The reversal of 10245215 is 51254201.

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

It is a cyclic number.

It is not a de Polignac number, because 10245215 - 2² = 10245211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10245211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024517 + ... + 1024526.

It is an arithmetic number, because the mean of its divisors is an integer number (3073566).

Almost surely, 2^10245215 is an apocalyptic number.

10245215 is a deficient number, since it is larger than the sum of its proper divisors (2049049).

10245215 is an equidigital number, since it uses as much as digits as its factorization.

10245215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049048.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 10245215 is about 3200.8147400310. The cubic root of 10245215 is about 217.1902668419.

Adding to 10245215 its reverse (51254201), we get a palindrome (61499416).

The spelling of 10245215 in words is "ten million, two hundred forty-five thousand, two hundred fifteen".