10205215 has 8 divisors (see below), whose sum is σ = 12778848. Its totient is φ = 7809120.

The previous prime is 10205207. The next prime is 10205227. The reversal of 10205215 is 51250201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10205215 - 2³ = 10205207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44256 + ... + 44485.

It is an arithmetic number, because the mean of its divisors is an integer number (1597356).

Almost surely, 2^10205215 is an apocalyptic number.

10205215 is a deficient number, since it is larger than the sum of its proper divisors (2573633).

10205215 is an equidigital number, since it uses as much as digits as its factorization.

10205215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88769.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 10205215 is about 3194.5602201242. The cubic root of 10205215 is about 216.9072423114.

Adding to 10205215 its reverse (51250201), we get a palindrome (61455416).

The spelling of 10205215 in words is "ten million, two hundred five thousand, two hundred fifteen".