14431481 has 2 divisors, whose sum is σ = 14431482. Its totient is φ = 14431480.

The previous prime is 14431477. The next prime is 14431489. The reversal of 14431481 is 18413441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9954025 + 4477456 = 3155^2 + 2116^2 .

It is a cyclic number.

It is not a de Polignac number, because 14431481 - 2² = 14431477 is a prime.

It is a super-2 number, since 2×14431481² = 416535287706722, which contains 22 as substring.

It is a Sophie Germain 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 14431481.

It is not a weakly prime, because it can be changed into another prime (14431489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7215740 + 7215741.

It is an arithmetic number, because the mean of its divisors is an integer number (7215741).

Almost surely, 2^14431481 is an apocalyptic number.

It is an amenable number.

14431481 is a deficient number, since it is larger than the sum of its proper divisors (1).

14431481 is an equidigital number, since it uses as much as digits as its factorization.

14431481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 26.

The square root of 14431481 is about 3798.8789135744. The cubic root of 14431481 is about 243.4652413397.

The spelling of 14431481 in words is "fourteen million, four hundred thirty-one thousand, four hundred eighty-one".