14181914 has 4 divisors (see below), whose sum is σ = 21272874. Its totient is φ = 7090956.

The previous prime is 14181913. The next prime is 14181917. The reversal of 14181914 is 41918141.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13801225 + 380689 = 3715^2 + 617^2 .

It is a super-2 number, since 2×14181914² = 402253369406792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14181913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3545477 + ... + 3545480.

Almost surely, 2^14181914 is an apocalyptic number.

14181914 is a deficient number, since it is larger than the sum of its proper divisors (7090960).

14181914 is an equidigital number, since it uses as much as digits as its factorization.

14181914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7090959.

The product of its digits is 1152, while the sum is 29.

The square root of 14181914 is about 3765.8882086435. Note that the first 3 decimals coincide. The cubic root of 14181914 is about 242.0536388171.

The spelling of 14181914 in words is "fourteen million, one hundred eighty-one thousand, nine hundred fourteen".