12455643 has 8 divisors (see below), whose sum is σ = 17056528. Its totient is φ = 8079264.

The previous prime is 12455633. The next prime is 12455647. The reversal of 12455643 is 34655421.

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

It is not a de Polignac number, because 12455643 - 2⁶ = 12455579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12455643.

It is not an unprimeable number, because it can be changed into a prime (12455647) 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, 55996 + ... + 56217.

It is an arithmetic number, because the mean of its divisors is an integer number (2132066).

Almost surely, 2^12455643 is an apocalyptic number.

12455643 is a deficient number, since it is larger than the sum of its proper divisors (4600885).

12455643 is a wasteful number, since it uses less digits than its factorization.

12455643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112253.

The product of its digits is 14400, while the sum is 30.

The square root of 12455643 is about 3529.2553038849. The cubic root of 12455643 is about 231.8046003857.

The spelling of 12455643 in words is "twelve million, four hundred fifty-five thousand, six hundred forty-three".