30125130 has 64 divisors (see below), whose sum is σ = 83220480. Its totient is φ = 6836544.

The previous prime is 30125111. The next prime is 30125191. The reversal of 30125130 is 3152103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 31 ways as a sum of consecutive naturals, for example, 34641 + ... + 35499.

It is an arithmetic number, because the mean of its divisors is an integer number (1300320).

Almost surely, 2^30125130 is an apocalyptic number.

30125130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30125130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41610240).

30125130 is an abundant number, since it is smaller than the sum of its proper divisors (53095350).

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

30125130 is a wasteful number, since it uses less digits than its factorization.

30125130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 30125130 is about 5488.6364426877. The cubic root of 30125130 is about 311.1546602397.

Adding to 30125130 its reverse (3152103), we get a palindrome (33277233).

The spelling of 30125130 in words is "thirty million, one hundred twenty-five thousand, one hundred thirty".