30305153 has 4 divisors (see below), whose sum is σ = 31009968. Its totient is φ = 29600340.

The previous prime is 30305141. The next prime is 30305159. The reversal of 30305153 is 35150303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30305153 - 2⁴ = 30305137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30305159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352343 + ... + 352428.

It is an arithmetic number, because the mean of its divisors is an integer number (7752492).

Almost surely, 2^30305153 is an apocalyptic number.

It is an amenable number.

30305153 is a deficient number, since it is larger than the sum of its proper divisors (704815).

30305153 is an equidigital number, since it uses as much as digits as its factorization.

30305153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704814.

The product of its (nonzero) digits is 675, while the sum is 20.

The square root of 30305153 is about 5505.0116257825. The cubic root of 30305153 is about 311.7732333430.

Adding to 30305153 its reverse (35150303), we get a palindrome (65455456).

The spelling of 30305153 in words is "thirty million, three hundred five thousand, one hundred fifty-three".