12135772 has 12 divisors (see below), whose sum is σ = 23168376. Its totient is φ = 5516240.

The previous prime is 12135763. The next prime is 12135803. The reversal of 12135772 is 27753121.

It is a self number, because there is not a number n which added to its sum of digits gives 12135772.

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, 137863 + ... + 137950.

It is an arithmetic number, because the mean of its divisors is an integer number (1930698).

Almost surely, 2^12135772 is an apocalyptic number.

It is an amenable number.

12135772 is a deficient number, since it is larger than the sum of its proper divisors (11032604).

12135772 is a wasteful number, since it uses less digits than its factorization.

12135772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275828 (or 275826 counting only the distinct ones).

The product of its digits is 2940, while the sum is 28.

The square root of 12135772 is about 3483.6434949633. The cubic root of 12135772 is about 229.8030576250.

Adding to 12135772 its reverse (27753121), we get a palindrome (39888893).

The spelling of 12135772 in words is "twelve million, one hundred thirty-five thousand, seven hundred seventy-two".