12051770 has 32 divisors (see below), whose sum is σ = 23034240. Its totient is φ = 4530240.

The previous prime is 12051769. The next prime is 12051779. The reversal of 12051770 is 7715021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (12051779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13601 + ... + 14459.

It is an arithmetic number, because the mean of its divisors is an integer number (719820).

Almost surely, 2^12051770 is an apocalyptic number.

12051770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12051770 is a deficient number, since it is larger than the sum of its proper divisors (10982470).

12051770 is a wasteful number, since it uses less digits than its factorization.

12051770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 12051770 is about 3471.5659290873. The cubic root of 12051770 is about 229.2716087227.

Adding to 12051770 its reverse (7715021), we get a palindrome (19766791).

It can be divided in two parts, 12051 and 770, that added together give a palindrome (12821).

The spelling of 12051770 in words is "twelve million, fifty-one thousand, seven hundred seventy".