30211205 has 8 divisors (see below), whose sum is σ = 37423104. Its totient is φ = 23389200.

The previous prime is 30211189. The next prime is 30211217. The reversal of 30211205 is 50211203.

It is a happy number.

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

It is not a de Polignac number, because 30211205 - 2⁴ = 30211189 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 30211205.

It is a congruent number.

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, 97301 + ... + 97610.

It is an arithmetic number, because the mean of its divisors is an integer number (4677888).

Almost surely, 2^30211205 is an apocalyptic number.

It is an amenable number.

30211205 is a deficient number, since it is larger than the sum of its proper divisors (7211899).

30211205 is a wasteful number, since it uses less digits than its factorization.

30211205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194947.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 30211205 is about 5496.4720503246. The cubic root of 30211205 is about 311.4507272284.

Adding to 30211205 its reverse (50211203), we get a palindrome (80422408).

The spelling of 30211205 in words is "thirty million, two hundred eleven thousand, two hundred five".