12057861 has 8 divisors (see below), whose sum is σ = 16117024. Its totient is φ = 8018640.

The previous prime is 12057847. The next prime is 12057869. The reversal of 12057861 is 16875021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12057861 - 2⁶ = 12057797 is a prime.

It is a Duffinian 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 (12057869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3511 + ... + 6036.

It is an arithmetic number, because the mean of its divisors is an integer number (2014628).

Almost surely, 2^12057861 is an apocalyptic number.

It is an amenable number.

12057861 is a deficient number, since it is larger than the sum of its proper divisors (4059163).

12057861 is an equidigital number, since it uses as much as digits as its factorization.

12057861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9971.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 12057861 is about 3472.4430880865. The cubic root of 12057861 is about 229.3102270659.

The spelling of 12057861 in words is "twelve million, fifty-seven thousand, eight hundred sixty-one".