8133145 has 16 divisors (see below), whose sum is σ = 10264320. Its totient is φ = 6174784.

The previous prime is 8133143. The next prime is 8133163. The reversal of 8133145 is 5413318.

It is a cyclic number.

It is not a de Polignac number, because 8133145 - 2¹ = 8133143 is a prime.

It is a super-2 number, since 2×8133145² = 132296095182050, which contains 22 as substring.

8133145 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8133143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22476 + ... + 22834.

It is an arithmetic number, because the mean of its divisors is an integer number (641520).

Almost surely, 2^8133145 is an apocalyptic number.

It is an amenable number.

8133145 is a deficient number, since it is larger than the sum of its proper divisors (2131175).

8133145 is a wasteful number, since it uses less digits than its factorization.

8133145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584.

The product of its digits is 1440, while the sum is 25.

The square root of 8133145 is about 2851.8669323796. The cubic root of 8133145 is about 201.1034425433.

The spelling of 8133145 in words is "eight million, one hundred thirty-three thousand, one hundred forty-five".