30203153 has 2 divisors, whose sum is σ = 30203154. Its totient is φ = 30203152.

The previous prime is 30203099. The next prime is 30203167. The reversal of 30203153 is 35130203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18037009 + 12166144 = 4247^2 + 3488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30203153 is a prime.

It is a super-2 number, since 2×30203153² = 1824460902282818, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30203053) 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 as a sum of consecutive naturals, namely, 15101576 + 15101577.

It is an arithmetic number, because the mean of its divisors is an integer number (15101577).

Almost surely, 2^30203153 is an apocalyptic number.

It is an amenable number.

30203153 is a deficient number, since it is larger than the sum of its proper divisors (1).

30203153 is an equidigital number, since it uses as much as digits as its factorization.

30203153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 30203153 is about 5495.7395316736. The cubic root of 30203153 is about 311.4230551105.

Adding to 30203153 its reverse (35130203), we get a palindrome (65333356).

The spelling of 30203153 in words is "thirty million, two hundred three thousand, one hundred fifty-three".