12051580 has 24 divisors (see below), whose sum is σ = 25375392. Its totient is φ = 4807872.

The previous prime is 12051577. The next prime is 12051629. The reversal of 12051580 is 8515021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11769 + ... + 12751.

It is an arithmetic number, because the mean of its divisors is an integer number (1057308).

Almost surely, 2^12051580 is an apocalyptic number.

12051580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12051580 is an abundant number, since it is smaller than the sum of its proper divisors (13323812).

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

12051580 is a wasteful number, since it uses less digits than its factorization.

12051580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605 (or 1603 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 12051580 is about 3471.5385638071. The cubic root of 12051580 is about 229.2704038697.

The spelling of 12051580 in words is "twelve million, fifty-one thousand, five hundred eighty".