12057643 has 6 divisors (see below), whose sum is σ = 13056684. Its totient is φ = 11129976.

The previous prime is 12057637. The next prime is 12057713. The reversal of 12057643 is 34675021.

It is not a de Polignac number, because 12057643 - 2⁵ = 12057611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12057623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35505 + ... + 35842.

It is an arithmetic number, because the mean of its divisors is an integer number (2176114).

Almost surely, 2^12057643 is an apocalyptic number.

12057643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12057643 is a deficient number, since it is larger than the sum of its proper divisors (999041).

12057643 is an equidigital number, since it uses as much as digits as its factorization.

12057643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71373 (or 71360 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 12057643 is about 3472.4116979414. The cubic root of 12057643 is about 229.3088451201.

The spelling of 12057643 in words is "twelve million, fifty-seven thousand, six hundred forty-three".