14981805 has 18 divisors (see below), whose sum is σ = 26013546. Its totient is φ = 7976448.

The previous prime is 14981789. The next prime is 14981821. The reversal of 14981805 is 50818941.

It is an interprime number because it is at equal distance from previous prime (14981789) and next prime (14981821).

It can be written as a sum of positive squares in 3 ways, for example, as 10929636 + 4052169 = 3306^2 + 2013^2 .

It is not a de Polignac number, because 14981805 - 2⁴ = 14981789 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 14981805.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 25677 + ... + 26253.

It is an arithmetic number, because the mean of its divisors is an integer number (1445197).

Almost surely, 2^14981805 is an apocalyptic number.

14981805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

14981805 is a deficient number, since it is larger than the sum of its proper divisors (11031741).

14981805 is an frugal number, since it uses more digits than its factorization.

14981805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 14981805 is about 3870.6336690521. The cubic root of 14981805 is about 246.5214499120.

Multiplying 14981805 by its product of nonzero digits (11520), we get a square (172590393600 = 415440²).

The spelling of 14981805 in words is "fourteen million, nine hundred eighty-one thousand, eight hundred five".