8133121 has 8 divisors (see below), whose sum is σ = 8683200. Its totient is φ = 7595280.

The previous prime is 8133119. The next prime is 8133127. The reversal of 8133121 is 1213318.

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 8133121 - 2¹ = 8133119 is a prime.

It is a super-2 number, since 2×8133121² = 132295314401282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8133127) 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, 1666 + ... + 4363.

It is an arithmetic number, because the mean of its divisors is an integer number (1085400).

Almost surely, 2^8133121 is an apocalyptic number.

It is an amenable number.

8133121 is a deficient number, since it is larger than the sum of its proper divisors (550079).

8133121 is a wasteful number, since it uses less digits than its factorization.

8133121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119.

The product of its digits is 144, while the sum is 19.

The square root of 8133121 is about 2851.8627246065. The cubic root of 8133121 is about 201.1032447319.

Adding to 8133121 its reverse (1213318), we get a palindrome (9346439).

The spelling of 8133121 in words is "eight million, one hundred thirty-three thousand, one hundred twenty-one".