14487281 has 6 divisors (see below), whose sum is σ = 15389910. Its totient is φ = 13634816.

The previous prime is 14487251. The next prime is 14487283. The reversal of 14487281 is 18278441.

It can be written as a sum of positive squares in 3 ways, for example, as 10144225 + 4343056 = 3185^2 + 2084^2 .

It is not a de Polignac number, because 14487281 - 2²² = 10292977 is a prime.

It is a super-2 number, since 2×14487281² = 419762621545922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14487283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24776 + ... + 25353.

It is an arithmetic number, because the mean of its divisors is an integer number (2564985).

Almost surely, 2^14487281 is an apocalyptic number.

It is an amenable number.

14487281 is a deficient number, since it is larger than the sum of its proper divisors (902629).

14487281 is an equidigital number, since it uses as much as digits as its factorization.

14487281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50163 (or 50146 counting only the distinct ones).

The product of its digits is 14336, while the sum is 35.

The square root of 14487281 is about 3806.2161000132. The cubic root of 14487281 is about 243.7786277137.

The spelling of 14487281 in words is "fourteen million, four hundred eighty-seven thousand, two hundred eighty-one".