30505105 has 8 divisors (see below), whose sum is σ = 36874152. Its totient is φ = 24225408.

The previous prime is 30505099. The next prime is 30505121. The reversal of 30505105 is 50150503.

It can be written as a sum of positive squares in 4 ways, for example, as 4739329 + 25765776 = 2177^2 + 5076^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30505105 - 2⁷ = 30504977 is a prime.

It is a super-2 number, since 2×30505105² = 1861122862122050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21582 + ... + 22951.

It is an arithmetic number, because the mean of its divisors is an integer number (4609269).

Almost surely, 2^30505105 is an apocalyptic number.

It is an amenable number.

30505105 is a deficient number, since it is larger than the sum of its proper divisors (6369047).

30505105 is a wasteful number, since it uses less digits than its factorization.

30505105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44675.

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 30505105 is about 5523.1426742390. The cubic root of 30505105 is about 312.4574192649.

Adding to 30505105 its reverse (50150503), we get a palindrome (80655608).

The spelling of 30505105 in words is "thirty million, five hundred five thousand, one hundred five".