30839125 has 8 divisors (see below), whose sum is σ = 38487384. Its totient is φ = 24671200.

The previous prime is 30839119. The next prime is 30839131. The reversal of 30839125 is 52193803.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30839119) and next prime (30839131).

It can be written as a sum of positive squares in 4 ways, for example, as 8191044 + 22648081 = 2862^2 + 4759^2 .

It is not a de Polignac number, because 30839125 - 2¹⁵ = 30806357 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 123232 + ... + 123481.

It is an arithmetic number, because the mean of its divisors is an integer number (4810923).

Almost surely, 2^30839125 is an apocalyptic number.

It is an amenable number.

30839125 is a deficient number, since it is larger than the sum of its proper divisors (7648259).

30839125 is an equidigital number, since it uses as much as digits as its factorization.

30839125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246728 (or 246718 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 30839125 is about 5553.2985693190. The cubic root of 30839125 is about 313.5937143257.

The spelling of 30839125 in words is "thirty million, eight hundred thirty-nine thousand, one hundred twenty-five".