14181649 has 4 divisors (see below), whose sum is σ = 14193664. Its totient is φ = 14169636.

The previous prime is 14181647. The next prime is 14181659. The reversal of 14181649 is 94618141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94618141 = 17 ⋅5565773.

It is a cyclic number.

It is not a de Polignac number, because 14181649 - 2¹ = 14181647 is a prime.

It is a super-2 number, since 2×14181649² = 402238336718402, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (14181647) 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, 4017 + ... + 6670.

It is an arithmetic number, because the mean of its divisors is an integer number (3548416).

Almost surely, 2^14181649 is an apocalyptic number.

It is an amenable number.

14181649 is a deficient number, since it is larger than the sum of its proper divisors (12015).

14181649 is a wasteful number, since it uses less digits than its factorization.

14181649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12014.

The product of its digits is 6912, while the sum is 34.

The square root of 14181649 is about 3765.8530242164. The cubic root of 14181649 is about 242.0521311547.

The spelling of 14181649 in words is "fourteen million, one hundred eighty-one thousand, six hundred forty-nine".