12051477 has 16 divisors (see below), whose sum is σ = 17974080. Its totient is φ = 7980336.

The previous prime is 12051463. The next prime is 12051493. The reversal of 12051477 is 77415021.

It is not a de Polignac number, because 12051477 - 2¹⁰ = 12050453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 12051477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12051407) 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, 2818 + ... + 5660.

It is an arithmetic number, because the mean of its divisors is an integer number (1123380).

Almost surely, 2^12051477 is an apocalyptic number.

It is an amenable number.

12051477 is a deficient number, since it is larger than the sum of its proper divisors (5922603).

12051477 is a wasteful number, since it uses less digits than its factorization.

12051477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3009 (or 3003 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 12051477 is about 3471.5237288545. The cubic root of 12051477 is about 229.2697507072.

Adding to 12051477 its reverse (77415021), we get a palindrome (89466498).

The spelling of 12051477 in words is "twelve million, fifty-one thousand, four hundred seventy-seven".