14981287205 has 4 divisors (see below), whose sum is σ = 17977544652. Its totient is φ = 11985029760.

The previous prime is 14981287183. The next prime is 14981287207. The reversal of 14981287205 is 50278218941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6395040961 + 8586246244 = 79969^2 + 92662^2 .

It is not a de Polignac number, because 14981287205 - 2²² = 14977092901 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 14981287205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14981287207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1498128716 + ... + 1498128725.

It is an arithmetic number, because the mean of its divisors is an integer number (4494386163).

Almost surely, 2^14981287205 is an apocalyptic number.

It is an amenable number.

14981287205 is a deficient number, since it is larger than the sum of its proper divisors (2996257447).

14981287205 is an equidigital number, since it uses as much as digits as its factorization.

14981287205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996257446.

The product of its (nonzero) digits is 322560, while the sum is 47.

The spelling of 14981287205 in words is "fourteen billion, nine hundred eighty-one million, two hundred eighty-seven thousand, two hundred five".