12135782 has 4 divisors (see below), whose sum is σ = 18203676. Its totient is φ = 6067890.

The previous prime is 12135763. The next prime is 12135803. The reversal of 12135782 is 28753121.

It is a semiprime because it is the product of two 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 as a sum of consecutive naturals, namely, 3033944 + ... + 3033947.

It is an arithmetic number, because the mean of its divisors is an integer number (4550919).

Almost surely, 2^12135782 is an apocalyptic number.

12135782 is a deficient number, since it is larger than the sum of its proper divisors (6067894).

12135782 is an equidigital number, since it uses as much as digits as its factorization.

12135782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6067893.

The product of its digits is 3360, while the sum is 29.

The square root of 12135782 is about 3483.6449302419. The cubic root of 12135782 is about 229.8031207450.

The spelling of 12135782 in words is "twelve million, one hundred thirty-five thousand, seven hundred eighty-two".