12111054 has 32 divisors (see below), whose sum is σ = 25145856. Its totient is φ = 3886080.

The previous prime is 12111053. The next prime is 12111059. The reversal of 12111054 is 45011121.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111053) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 18574 + ... + 19214.

It is an arithmetic number, because the mean of its divisors is an integer number (785808).

Almost surely, 2^12111054 is an apocalyptic number.

12111054 is an abundant number, since it is smaller than the sum of its proper divisors (13034802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111054 is a wasteful number, since it uses less digits than its factorization.

12111054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 12111054 is about 3480.0939642487. The cubic root of 12111054 is about 229.6469315087.

Adding to 12111054 its reverse (45011121), we get a palindrome (57122175).

It can be divided in two parts, 121 and 11054, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 12111054 in words is "twelve million, one hundred eleven thousand, fifty-four".