30465221 has 4 divisors (see below), whose sum is σ = 30476832. Its totient is φ = 30453612.

The previous prime is 30465217. The next prime is 30465247. The reversal of 30465221 is 12256403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 30465221 - 2² = 30465217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30465251) 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 3 ways as a sum of consecutive naturals, for example, 206 + ... + 7808.

It is an arithmetic number, because the mean of its divisors is an integer number (7619208).

Almost surely, 2^30465221 is an apocalyptic number.

It is an amenable number.

30465221 is a deficient number, since it is larger than the sum of its proper divisors (11611).

30465221 is an equidigital number, since it uses as much as digits as its factorization.

30465221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11610.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 30465221 is about 5519.5308677459. The cubic root of 30465221 is about 312.3211853806.

The spelling of 30465221 in words is "thirty million, four hundred sixty-five thousand, two hundred twenty-one".