33712145 has 8 divisors (see below), whose sum is σ = 40625280. Its totient is φ = 26855920.

The previous prime is 33712141. The next prime is 33712153. The reversal of 33712145 is 54121733.

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

It is not a de Polignac number, because 33712145 - 2² = 33712141 is a prime.

It is a super-2 number, since 2×33712145² = 2273017441002050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33712141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12911 + ... + 15300.

It is an arithmetic number, because the mean of its divisors is an integer number (5078160).

Almost surely, 2^33712145 is an apocalyptic number.

It is an amenable number.

33712145 is a deficient number, since it is larger than the sum of its proper divisors (6913135).

33712145 is a wasteful number, since it uses less digits than its factorization.

33712145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28455.

The product of its digits is 2520, while the sum is 26.

The square root of 33712145 is about 5806.2160655628. The cubic root of 33712145 is about 323.0443344142.

Adding to 33712145 its reverse (54121733), we get a palindrome (87833878).

The spelling of 33712145 in words is "thirty-three million, seven hundred twelve thousand, one hundred forty-five".