30203085 has 32 divisors (see below), whose sum is σ = 53088768. Its totient is φ = 14541120.

The previous prime is 30203077. The next prime is 30203099. The reversal of 30203085 is 58030203.

30203085 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 30203085 - 2³ = 30203077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26334 + ... + 27456.

It is an arithmetic number, because the mean of its divisors is an integer number (1659024).

Almost surely, 2^30203085 is an apocalyptic number.

It is an amenable number.

30203085 is a deficient number, since it is larger than the sum of its proper divisors (22885683).

30203085 is a wasteful number, since it uses less digits than its factorization.

30203085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 30203085 is about 5495.7333450596. The cubic root of 30203085 is about 311.4228213956.

Adding to 30203085 its reverse (58030203), we get a palindrome (88233288).

It can be divided in two parts, 3020 and 3085, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 30203085 in words is "thirty million, two hundred three thousand, eighty-five".