12135930 has 16 divisors (see below), whose sum is σ = 29126304. Its totient is φ = 3236240.

The previous prime is 12135913. The next prime is 12135931. The reversal of 12135930 is 3953121.

It is a happy number.

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 12135930.

It is not an unprimeable number, because it can be changed into a prime (12135931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202236 + ... + 202295.

It is an arithmetic number, because the mean of its divisors is an integer number (1820394).

Almost surely, 2^12135930 is an apocalyptic number.

12135930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12135930 is an abundant number, since it is smaller than the sum of its proper divisors (16990374).

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

12135930 is a wasteful number, since it uses less digits than its factorization.

12135930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404541.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 12135930 is about 3483.6661722961. Note that the first 3 decimals coincide. The cubic root of 12135930 is about 229.8040549170.

The spelling of 12135930 in words is "twelve million, one hundred thirty-five thousand, nine hundred thirty".