14143649 has 4 divisors (see below), whose sum is σ = 15231636. Its totient is φ = 13055664.

The previous prime is 14143639. The next prime is 14143669. The reversal of 14143649 is 94634141.

It is a happy number.

14143649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9193024 + 4950625 = 3032^2 + 2225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14143649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14143639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543974 + ... + 543999.

It is an arithmetic number, because the mean of its divisors is an integer number (3807909).

Almost surely, 2^14143649 is an apocalyptic number.

It is an amenable number.

14143649 is a deficient number, since it is larger than the sum of its proper divisors (1087987).

14143649 is a wasteful number, since it uses less digits than its factorization.

14143649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087986.

The product of its digits is 10368, while the sum is 32.

The square root of 14143649 is about 3760.8043022737. The cubic root of 14143649 is about 241.8357433279.

The spelling of 14143649 in words is "fourteen million, one hundred forty-three thousand, six hundred forty-nine".