30045105 has 24 divisors (see below), whose sum is σ = 52439400. Its totient is φ = 15912960.

The previous prime is 30045097. The next prime is 30045109. The reversal of 30045105 is 50154003.

It can be written as a sum of positive squares in 4 ways, for example, as 1912689 + 28132416 = 1383^2 + 5304^2 .

It is not a de Polignac number, because 30045105 - 2³ = 30045097 is a prime.

It is a super-2 number, since 2×30045105² = 1805416668922050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30045109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4465 + ... + 8945.

It is an arithmetic number, because the mean of its divisors is an integer number (2184975).

Almost surely, 2^30045105 is an apocalyptic number.

It is an amenable number.

30045105 is a deficient number, since it is larger than the sum of its proper divisors (22394295).

30045105 is a wasteful number, since it uses less digits than its factorization.

30045105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4641 (or 4638 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 30045105 is about 5481.3415328731. The cubic root of 30045105 is about 310.8788967525.

Adding to 30045105 its reverse (50154003), we get a palindrome (80199108).

The spelling of 30045105 in words is "thirty million, forty-five thousand, one hundred five".