30623105 has 8 divisors (see below), whose sum is σ = 37644264. Its totient is φ = 23900800.

The previous prime is 30623093. The next prime is 30623107. The reversal of 30623105 is 50132603.

It can be written as a sum of positive squares in 4 ways, for example, as 3489424 + 27133681 = 1868^2 + 5209^2 .

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

It is not a de Polignac number, because 30623105 - 2¹² = 30619009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30623107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74486 + ... + 74895.

It is an arithmetic number, because the mean of its divisors is an integer number (4705533).

Almost surely, 2^30623105 is an apocalyptic number.

It is an amenable number.

30623105 is a deficient number, since it is larger than the sum of its proper divisors (7021159).

30623105 is a wasteful number, since it uses less digits than its factorization.

30623105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149427.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 30623105 is about 5533.8146878984. The cubic root of 30623105 is about 312.8597840185.

Adding to 30623105 its reverse (50132603), we get a palindrome (80755708).

The spelling of 30623105 in words is "thirty million, six hundred twenty-three thousand, one hundred five".