12230857 has 4 divisors (see below), whose sum is σ = 12491136. Its totient is φ = 11970580.

The previous prime is 12230809. The next prime is 12230861. The reversal of 12230857 is 75803221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12230857 - 2¹¹ = 12228809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12230807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130069 + ... + 130162.

It is an arithmetic number, because the mean of its divisors is an integer number (3122784).

Almost surely, 2^12230857 is an apocalyptic number.

It is an amenable number.

12230857 is a deficient number, since it is larger than the sum of its proper divisors (260279).

12230857 is an equidigital number, since it uses as much as digits as its factorization.

12230857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260278.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 12230857 is about 3497.2642164984. The cubic root of 12230857 is about 230.4016736572.

The spelling of 12230857 in words is "twelve million, two hundred thirty thousand, eight hundred fifty-seven".