30885121 has 8 divisors (see below), whose sum is σ = 31834880. Its totient is φ = 29941488.

The previous prime is 30885109. The next prime is 30885131. The reversal of 30885121 is 12158803.

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 30885121 - 2¹³ = 30876929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30885121.

It is not an unprimeable number, because it can be changed into a prime (30885131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10000 + ... + 12718.

It is an arithmetic number, because the mean of its divisors is an integer number (3979360).

Almost surely, 2^30885121 is an apocalyptic number.

It is an amenable number.

30885121 is a deficient number, since it is larger than the sum of its proper divisors (949759).

30885121 is a wasteful number, since it uses less digits than its factorization.

30885121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 30885121 is about 5557.4383487359. The cubic root of 30885121 is about 313.7495433399.

The spelling of 30885121 in words is "thirty million, eight hundred eighty-five thousand, one hundred twenty-one".