33530145 has 16 divisors (see below), whose sum is σ = 58525632. Its totient is φ = 16256960.

The previous prime is 33530071. The next prime is 33530179. The reversal of 33530145 is 54103533.

It is a happy number.

It is not a de Polignac number, because 33530145 - 2¹³ = 33521953 is a prime.

It is a super-2 number, since 2×33530145² = 2248541247442050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101442 + ... + 101771.

It is an arithmetic number, because the mean of its divisors is an integer number (3657852).

Almost surely, 2^33530145 is an apocalyptic number.

It is an amenable number.

33530145 is a deficient number, since it is larger than the sum of its proper divisors (24995487).

33530145 is a wasteful number, since it uses less digits than its factorization.

33530145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203232.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 33530145 is about 5790.5219971951. The cubic root of 33530145 is about 322.4619509224.

Adding to 33530145 its reverse (54103533), we get a palindrome (87633678).

The spelling of 33530145 in words is "thirty-three million, five hundred thirty thousand, one hundred forty-five".