30909201 has 16 divisors (see below), whose sum is σ = 42823680. Its totient is φ = 19809360.

The previous prime is 30909199. The next prime is 30909223. The reversal of 30909201 is 10290903.

It is a happy number.

It is not a de Polignac number, because 30909201 - 2¹ = 30909199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30909251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14140 + ... + 16178.

It is an arithmetic number, because the mean of its divisors is an integer number (2676480).

Almost surely, 2^30909201 is an apocalyptic number.

30909201 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30909201 is a deficient number, since it is larger than the sum of its proper divisors (11914479).

30909201 is a wasteful number, since it uses less digits than its factorization.

30909201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 30909201 is about 5559.6043924006. The cubic root of 30909201 is about 313.8310618417.

The spelling of 30909201 in words is "thirty million, nine hundred nine thousand, two hundred one".