12081563 has 8 divisors (see below), whose sum is σ = 13168848. Its totient is φ = 11016864.

The previous prime is 12081551. The next prime is 12081583. The reversal of 12081563 is 36518021.

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 12081563 - 2⁴ = 12081547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12081523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4520 + ... + 6677.

It is an arithmetic number, because the mean of its divisors is an integer number (1646106).

Almost surely, 2^12081563 is an apocalyptic number.

12081563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12081563 is a deficient number, since it is larger than the sum of its proper divisors (1087285).

12081563 is a wasteful number, since it uses less digits than its factorization.

12081563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11293.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12081563 is about 3475.8542834820. The cubic root of 12081563 is about 229.4603795582.

Adding to 12081563 its reverse (36518021), we get a palindrome (48599584).

The spelling of 12081563 in words is "twelve million, eighty-one thousand, five hundred sixty-three".