12135030 has 64 divisors (see below), whose sum is σ = 31173120. Its totient is φ = 3015936.

The previous prime is 12135023. The next prime is 12135031. The reversal of 12135030 is 3053121.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12135031) by changing a digit.

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, 29466 + ... + 29874.

It is an arithmetic number, because the mean of its divisors is an integer number (487080).

Almost surely, 2^12135030 is an apocalyptic number.

12135030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12135030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15586560).

12135030 is an abundant number, since it is smaller than the sum of its proper divisors (19038090).

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

12135030 is a wasteful number, since it uses less digits than its factorization.

12135030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485.

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

The square root of 12135030 is about 3483.5369956411. The cubic root of 12135030 is about 229.7983740240.

Adding to 12135030 its reverse (3053121), we get a palindrome (15188151).

The spelling of 12135030 in words is "twelve million, one hundred thirty-five thousand, thirty".