14912813 has 4 divisors (see below), whose sum is σ = 15315900. Its totient is φ = 14509728.

The previous prime is 14912803. The next prime is 14912819. The reversal of 14912813 is 31821941.

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 6543364 + 8369449 = 2558^2 + 2893^2 .

It is a cyclic number.

It is not a de Polignac number, because 14912813 - 2⁴ = 14912797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14912819) 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 3 ways as a sum of consecutive naturals, for example, 201488 + ... + 201561.

It is an arithmetic number, because the mean of its divisors is an integer number (3828975).

Almost surely, 2^14912813 is an apocalyptic number.

It is an amenable number.

14912813 is a deficient number, since it is larger than the sum of its proper divisors (403087).

14912813 is an equidigital number, since it uses as much as digits as its factorization.

14912813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403086.

The product of its digits is 1728, while the sum is 29.

The square root of 14912813 is about 3861.7111492187. The cubic root of 14912813 is about 246.1424528005.

The spelling of 14912813 in words is "fourteen million, nine hundred twelve thousand, eight hundred thirteen".