33120545 has 8 divisors (see below), whose sum is σ = 39833640. Its totient is φ = 26437120.

The previous prime is 33120541. The next prime is 33120547. The reversal of 33120545 is 54502133.

It can be written as a sum of positive squares in 4 ways, for example, as 2572816 + 30547729 = 1604^2 + 5527^2 .

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

It is not a de Polignac number, because 33120545 - 2² = 33120541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33120545.

It is not an unprimeable number, because it can be changed into a prime (33120541) 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, 4880 + ... + 9489.

It is an arithmetic number, because the mean of its divisors is an integer number (4979205).

Almost surely, 2^33120545 is an apocalyptic number.

It is an amenable number.

33120545 is a deficient number, since it is larger than the sum of its proper divisors (6713095).

33120545 is a wasteful number, since it uses less digits than its factorization.

33120545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14835.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 33120545 is about 5755.0451779287. The cubic root of 33120545 is about 321.1435162127.

Adding to 33120545 its reverse (54502133), we get a palindrome (87622678).

The spelling of 33120545 in words is "thirty-three million, one hundred twenty thousand, five hundred forty-five".