33145065 has 16 divisors (see below), whose sum is σ = 58924800. Its totient is φ = 17677296.

The previous prime is 33145061. The next prime is 33145067. The reversal of 33145065 is 56054133.

It is not a de Polignac number, because 33145065 - 2² = 33145061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (33145061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122625 + ... + 122894.

It is an arithmetic number, because the mean of its divisors is an integer number (3682800).

Almost surely, 2^33145065 is an apocalyptic number.

It is an amenable number.

33145065 is a deficient number, since it is larger than the sum of its proper divisors (25779735).

33145065 is a wasteful number, since it uses less digits than its factorization.

33145065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245533 (or 245527 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 33145065 is about 5757.1750885308. The cubic root of 33145065 is about 321.2227469601. Note that the first 3 decimals are identical.

Adding to 33145065 its reverse (56054133), we get a palindrome (89199198).

The spelling of 33145065 in words is "thirty-three million, one hundred forty-five thousand, sixty-five".