30207105 has 12 divisors (see below), whose sum is σ = 52359060. Its totient is φ = 16110432.

The previous prime is 30207101. The next prime is 30207109. The reversal of 30207105 is 50170203.

It is an interprime number because it is at equal distance from previous prime (30207101) and next prime (30207109).

It can be written as a sum of positive squares in 2 ways, for example, as 11048976 + 19158129 = 3324^2 + 4377^2 .

It is not a de Polignac number, because 30207105 - 2² = 30207101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30207101) 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, 335590 + ... + 335679.

It is an arithmetic number, because the mean of its divisors is an integer number (4363255).

Almost surely, 2^30207105 is an apocalyptic number.

It is an amenable number.

30207105 is a deficient number, since it is larger than the sum of its proper divisors (22151955).

30207105 is a wasteful number, since it uses less digits than its factorization.

30207105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671280 (or 671277 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 30207105 is about 5496.0990711595. The cubic root of 30207105 is about 311.4366374699.

Adding to 30207105 its reverse (50170203), we get a palindrome (80377308).

The spelling of 30207105 in words is "thirty million, two hundred seven thousand, one hundred five".