30125315 has 16 divisors (see below), whose sum is σ = 39813120. Its totient is φ = 21700320.

The previous prime is 30125281. The next prime is 30125321. The reversal of 30125315 is 51352103.

30125315 = T₄₂₀ + T₄₂₁ + ... + T₆₃₃.

It is not a de Polignac number, because 30125315 - 2⁸ = 30125059 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3326 + ... + 8444.

It is an arithmetic number, because the mean of its divisors is an integer number (2488320).

Almost surely, 2^30125315 is an apocalyptic number.

30125315 is a deficient number, since it is larger than the sum of its proper divisors (9687805).

30125315 is a wasteful number, since it uses less digits than its factorization.

30125315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 30125315 is about 5488.6532956637. The cubic root of 30125315 is about 311.1552971774.

Adding to 30125315 its reverse (51352103), we get a palindrome (81477418).

The spelling of 30125315 in words is "thirty million, one hundred twenty-five thousand, three hundred fifteen".