30322145 has 16 divisors (see below), whose sum is σ = 41758848. Its totient is φ = 20705280.

The previous prime is 30322121. The next prime is 30322147. The reversal of 30322145 is 54122303.

It is a happy number.

It is not a de Polignac number, because 30322145 - 2¹⁰ = 30321121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30322147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7310 + ... + 10680.

It is an arithmetic number, because the mean of its divisors is an integer number (2609928).

Almost surely, 2^30322145 is an apocalyptic number.

30322145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30322145 is a deficient number, since it is larger than the sum of its proper divisors (11436703).

30322145 is a wasteful number, since it uses less digits than its factorization.

30322145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30322145 is about 5506.5547305007. The cubic root of 30322145 is about 311.8314925326.

Adding to 30322145 its reverse (54122303), we get a palindrome (84444448).

The spelling of 30322145 in words is "thirty million, three hundred twenty-two thousand, one hundred forty-five".