14478641 has 2 divisors, whose sum is σ = 14478642. Its totient is φ = 14478640.

The previous prime is 14478637. The next prime is 14478647. The reversal of 14478641 is 14687441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10214416 + 4264225 = 3196^2 + 2065^2 .

It is a cyclic number.

It is not a de Polignac number, because 14478641 - 2² = 14478637 is a prime.

It is not a weakly prime, because it can be changed into another prime (14478647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7239320 + 7239321.

It is an arithmetic number, because the mean of its divisors is an integer number (7239321).

Almost surely, 2^14478641 is an apocalyptic number.

It is an amenable number.

14478641 is a deficient number, since it is larger than the sum of its proper divisors (1).

14478641 is an equidigital number, since it uses as much as digits as its factorization.

14478641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 35.

The square root of 14478641 is about 3805.0809452625. The cubic root of 14478641 is about 243.7301560878.

The spelling of 14478641 in words is "fourteen million, four hundred seventy-eight thousand, six hundred forty-one".