14271891 has 20 divisors (see below), whose sum is σ = 21064392. Its totient is φ = 8565568.

The previous prime is 14271889. The next prime is 14271911. The reversal of 14271891 is 19817241.

14271891 = T₂₆₃ + T₂₆₄ + ... + T₄₆₉.

It is not a de Polignac number, because 14271891 - 2¹ = 14271889 is a prime.

Its product of digits (4032) is a multiple of the sum of its prime factors (112).

It is not an unprimeable number, because it can be changed into a prime (14271821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 620506 + ... + 620528.

Almost surely, 2^14271891 is an apocalyptic number.

14271891 is a deficient number, since it is larger than the sum of its proper divisors (6792501).

14271891 is an frugal number, since it uses more digits than its factorization.

14271891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 43 counting only the distinct ones).

The product of its digits is 4032, while the sum is 33.

The square root of 14271891 is about 3777.8156386992. The cubic root of 14271891 is about 242.5644622620.

The spelling of 14271891 in words is "fourteen million, two hundred seventy-one thousand, eight hundred ninety-one".