8190215 has 8 divisors (see below), whose sum is σ = 10721808. Its totient is φ = 5956480.

The previous prime is 8190211. The next prime is 8190223. The reversal of 8190215 is 5120918.

It is a happy number.

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

It is not a de Polignac number, because 8190215 - 2² = 8190211 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 (8190211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74402 + ... + 74511.

It is an arithmetic number, because the mean of its divisors is an integer number (1340226).

Almost surely, 2^8190215 is an apocalyptic number.

8190215 is a deficient number, since it is larger than the sum of its proper divisors (2531593).

8190215 is a wasteful number, since it uses less digits than its factorization.

8190215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148929.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 8190215 is about 2861.8551675443. The cubic root of 8190215 is about 201.5727252590.

The spelling of 8190215 in words is "eight million, one hundred ninety thousand, two hundred fifteen".