12135746 has 32 divisors (see below), whose sum is σ = 21876480. Its totient is φ = 4939200.

The previous prime is 12135727. The next prime is 12135749. The reversal of 12135746 is 64753121.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (12135749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28616 + ... + 29036.

It is an arithmetic number, because the mean of its divisors is an integer number (683640).

Almost surely, 2^12135746 is an apocalyptic number.

12135746 is a deficient number, since it is larger than the sum of its proper divisors (9740734).

12135746 is a wasteful number, since it uses less digits than its factorization.

12135746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530.

The product of its digits is 5040, while the sum is 29.

The square root of 12135746 is about 3483.6397632361. The cubic root of 12135746 is about 229.8028935129.

Adding to 12135746 its reverse (64753121), we get a palindrome (76888867).

The spelling of 12135746 in words is "twelve million, one hundred thirty-five thousand, seven hundred forty-six".