12036551 has 2 divisors, whose sum is σ = 12036552. Its totient is φ = 12036550.

The previous prime is 12036539. The next prime is 12036553. The reversal of 12036551 is 15563021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12036551 - 2¹⁸ = 11774407 is a prime.

Together with 12036553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12036553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6018275 + 6018276.

It is an arithmetic number, because the mean of its divisors is an integer number (6018276).

Almost surely, 2^12036551 is an apocalyptic number.

12036551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12036551 is an equidigital number, since it uses as much as digits as its factorization.

12036551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 12036551 is about 3469.3732863444. The cubic root of 12036551 is about 229.1750598505.

Adding to 12036551 its reverse (15563021), we get a palindrome (27599572).

The spelling of 12036551 in words is "twelve million, thirty-six thousand, five hundred fifty-one".