810242215 has 8 divisors (see below), whose sum is σ = 972444960. Its totient is φ = 648090912.

The previous prime is 810242203. The next prime is 810242233. The reversal of 810242215 is 512242018.

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

It is a cyclic number.

It is not a de Polignac number, because 810242215 - 2¹⁵ = 810209447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 810242215.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 47901 + ... + 62569.

It is an arithmetic number, because the mean of its divisors is an integer number (121555620).

Almost surely, 2^810242215 is an apocalyptic number.

810242215 is a deficient number, since it is larger than the sum of its proper divisors (162202745).

810242215 is a wasteful number, since it uses less digits than its factorization.

810242215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25721.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 810242215 is about 28464.7539072447. The cubic root of 810242215 is about 932.2626583683.

The spelling of 810242215 in words is "eight hundred ten million, two hundred forty-two thousand, two hundred fifteen".