30561801 has 8 divisors (see below), whose sum is σ = 43146144. Its totient is φ = 19176000.

The previous prime is 30561787. The next prime is 30561803. The reversal of 30561801 is 10816503.

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

It is not a de Polignac number, because 30561801 - 2¹³ = 30553609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30561803) 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, 299575 + ... + 299676.

It is an arithmetic number, because the mean of its divisors is an integer number (5393268).

Almost surely, 2^30561801 is an apocalyptic number.

It is an amenable number.

30561801 is a deficient number, since it is larger than the sum of its proper divisors (12584343).

30561801 is a wasteful number, since it uses less digits than its factorization.

30561801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599271.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 30561801 is about 5528.2728767672. The cubic root of 30561801 is about 312.6508745596.

The spelling of 30561801 in words is "thirty million, five hundred sixty-one thousand, eight hundred one".