12136564 has 24 divisors (see below), whose sum is σ = 23407776. Its totient is φ = 5460000.

The previous prime is 12136561. The next prime is 12136577. The reversal of 12136564 is 46563121.

12136564 = 327² + 328² + ... + 414².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12136561) 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 7 ways as a sum of consecutive naturals, for example, 3079 + ... + 5809.

It is an arithmetic number, because the mean of its divisors is an integer number (975324).

Almost surely, 2^12136564 is an apocalyptic number.

It is an amenable number.

12136564 is a deficient number, since it is larger than the sum of its proper divisors (11271212).

12136564 is a wasteful number, since it uses less digits than its factorization.

12136564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847 (or 2845 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 12136564 is about 3483.7571671975. The cubic root of 12136564 is about 229.8080566220.

Adding to 12136564 its reverse (46563121), we get a palindrome (58699685).

It can be divided in two parts, 1213 and 6564, that added together give a palindrome (7777).

The spelling of 12136564 in words is "twelve million, one hundred thirty-six thousand, five hundred sixty-four".