30302105 has 12 divisors (see below), whose sum is σ = 37010532. Its totient is φ = 23817120.

The previous prime is 30302101. The next prime is 30302119. The reversal of 30302105 is 50120303.

It can be written as a sum of positive squares in 2 ways, for example, as 3345241 + 26956864 = 1829^2 + 5192^2 .

It is not a de Polignac number, because 30302105 - 2² = 30302101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30302105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30302101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16535 + ... + 18275.

It is an arithmetic number, because the mean of its divisors is an integer number (3084211).

Almost surely, 2^30302105 is an apocalyptic number.

It is an amenable number.

30302105 is a deficient number, since it is larger than the sum of its proper divisors (6708427).

30302105 is an equidigital number, since it uses as much as digits as its factorization.

30302105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864 (or 1805 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 30302105 is about 5504.7347801688. The cubic root of 30302105 is about 311.7627805918.

Adding to 30302105 its reverse (50120303), we get a palindrome (80422408).

The spelling of 30302105 in words is "thirty million, three hundred two thousand, one hundred five".