8133215 has 8 divisors (see below), whose sum is σ = 9797760. Its totient is φ = 6481312.

The previous prime is 8133199. The next prime is 8133233. The reversal of 8133215 is 5123318.

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 8133215 - 2⁴ = 8133199 is a prime.

It is a super-2 number, since 2×8133215² = 132298372472450, which contains 22 as substring.

It is a plaindrome in base 14.

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, 1679 + ... + 4368.

It is an arithmetic number, because the mean of its divisors is an integer number (1224720).

Almost surely, 2^8133215 is an apocalyptic number.

8133215 is a deficient number, since it is larger than the sum of its proper divisors (1664545).

8133215 is a wasteful number, since it uses less digits than its factorization.

8133215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6321.

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

The square root of 8133215 is about 2851.8792050155. The cubic root of 8133215 is about 201.1040194911.

The spelling of 8133215 in words is "eight million, one hundred thirty-three thousand, two hundred fifteen".