33180985 has 8 divisors (see below), whose sum is σ = 39849480. Its totient is φ = 26523264.

The previous prime is 33180977. The next prime is 33180997. The reversal of 33180985 is 58908133.

It can be written as a sum of positive squares in 4 ways, for example, as 1607824 + 31573161 = 1268^2 + 5619^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 33180985 - 2³ = 33180977 is a prime.

It is a super-2 number, since 2×33180985² = 2201955531140450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7831 + ... + 11299.

It is an arithmetic number, because the mean of its divisors is an integer number (4981185).

Almost surely, 2^33180985 is an apocalyptic number.

It is an amenable number.

33180985 is a deficient number, since it is larger than the sum of its proper divisors (6668495).

33180985 is a wasteful number, since it uses less digits than its factorization.

33180985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5387.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 33180985 is about 5760.2938293111. The cubic root of 33180985 is about 321.3387436700.

The spelling of 33180985 in words is "thirty-three million, one hundred eighty thousand, nine hundred eighty-five".