12036554 has 4 divisors (see below), whose sum is σ = 18054834. Its totient is φ = 6018276.

The previous prime is 12036553. The next prime is 12036601. The reversal of 12036554 is 45563021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8323225 + 3713329 = 2885^2 + 1927^2 .

It is not an unprimeable number, because it can be changed into a prime (12036551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3009137 + ... + 3009140.

Almost surely, 2^12036554 is an apocalyptic number.

12036554 is a deficient number, since it is larger than the sum of its proper divisors (6018280).

12036554 is an equidigital number, since it uses as much as digits as its factorization.

12036554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6018279.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 12036554 is about 3469.3737186991. The cubic root of 12036554 is about 229.1750788905.

Adding to 12036554 its reverse (45563021), we get a palindrome (57599575).

The spelling of 12036554 in words is "twelve million, thirty-six thousand, five hundred fifty-four".