12621043 has 8 divisors (see below), whose sum is σ = 13351968. Its totient is φ = 11905344.

The previous prime is 12621041. The next prime is 12621047. The reversal of 12621043 is 34012621.

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

It is a cyclic number.

It is not a de Polignac number, because 12621043 - 2¹ = 12621041 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 12621043.

It is not an unprimeable number, because it can be changed into a prime (12621041) 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 7 ways as a sum of consecutive naturals, for example, 2080 + ... + 5437.

It is an arithmetic number, because the mean of its divisors is an integer number (1668996).

Almost surely, 2^12621043 is an apocalyptic number.

12621043 is a deficient number, since it is larger than the sum of its proper divisors (730925).

12621043 is an equidigital number, since it uses as much as digits as its factorization.

12621043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7613.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 12621043 is about 3552.6107301532. The cubic root of 12621043 is about 232.8261457371.

Adding to 12621043 its reverse (34012621), we get a palindrome (46633664).

It can be divided in two parts, 126210 and 43, that added together give a triangular number (126253 = T₅₀₂).

The spelling of 12621043 in words is "twelve million, six hundred twenty-one thousand, forty-three".