30302145 has 12 divisors (see below), whose sum is σ = 52523796. Its totient is φ = 16161120.

The previous prime is 30302137. The next prime is 30302171. The reversal of 30302145 is 54120303.

It can be written as a sum of positive squares in 2 ways, for example, as 4016016 + 26286129 = 2004^2 + 5127^2 .

It is not a de Polignac number, because 30302145 - 2³ = 30302137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336646 + ... + 336735.

It is an arithmetic number, because the mean of its divisors is an integer number (4376983).

Almost surely, 2^30302145 is an apocalyptic number.

It is an amenable number.

30302145 is a deficient number, since it is larger than the sum of its proper divisors (22221651).

30302145 is a wasteful number, since it uses less digits than its factorization.

30302145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673392 (or 673389 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 30302145 is about 5504.7384134035. The cubic root of 30302145 is about 311.7629177715.

Adding to 30302145 its reverse (54120303), we get a palindrome (84422448).

The spelling of 30302145 in words is "thirty million, three hundred two thousand, one hundred forty-five".