12135982 has 8 divisors (see below), whose sum is σ = 18234216. Its totient is φ = 6057912.

The previous prime is 12135979. The next prime is 12135997. The reversal of 12135982 is 28953121.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 3433 + ... + 6004.

It is an arithmetic number, because the mean of its divisors is an integer number (2279277).

Almost surely, 2^12135982 is an apocalyptic number.

12135982 is a deficient number, since it is larger than the sum of its proper divisors (6098234).

12135982 is an equidigital number, since it uses as much as digits as its factorization.

12135982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10082.

The product of its digits is 4320, while the sum is 31.

The square root of 12135982 is about 3483.6736356898. The cubic root of 12135982 is about 229.8043831378.

The spelling of 12135982 in words is "twelve million, one hundred thirty-five thousand, nine hundred eighty-two".