30125670 has 32 divisors (see below), whose sum is σ = 72880128. Its totient is φ = 7969248.

The previous prime is 30125663. The next prime is 30125759. The reversal of 30125670 is 7652103.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30125670.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144 + ... + 7763.

It is an arithmetic number, because the mean of its divisors is an integer number (2277504).

Almost surely, 2^30125670 is an apocalyptic number.

30125670 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30125670 is an abundant number, since it is smaller than the sum of its proper divisors (42754458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30125670 is a wasteful number, since it uses less digits than its factorization.

30125670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8044.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 30125670 is about 5488.6856350132. The cubic root of 30125670 is about 311.1565194020.

Adding to 30125670 its reverse (7652103), we get a palindrome (37777773).

The spelling of 30125670 in words is "thirty million, one hundred twenty-five thousand, six hundred seventy".