30120953 has 2 divisors, whose sum is σ = 30120954. Its totient is φ = 30120952.

The previous prime is 30120919. The next prime is 30120973. The reversal of 30120953 is 35902103.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30118144 + 2809 = 5488^2 + 53^2 .

It is a cyclic number.

It is not a de Polignac number, because 30120953 - 2⁸ = 30120697 is a prime.

It is not a weakly prime, because it can be changed into another prime (30120973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060476 + 15060477.

It is an arithmetic number, because the mean of its divisors is an integer number (15060477).

Almost surely, 2^30120953 is an apocalyptic number.

It is an amenable number.

30120953 is a deficient number, since it is larger than the sum of its proper divisors (1).

30120953 is an equidigital number, since it uses as much as digits as its factorization.

30120953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 30120953 is about 5488.2559160447. The cubic root of 30120953 is about 311.1402785248.

The spelling of 30120953 in words is "thirty million, one hundred twenty thousand, nine hundred fifty-three".