14487491 has 4 divisors (see below), whose sum is σ = 14501112. Its totient is φ = 14473872.

The previous prime is 14487457. The next prime is 14487503. The reversal of 14487491 is 19478441.

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

It is a cyclic number.

It is not a de Polignac number, because 14487491 - 2²² = 10293187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14487691) 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, 5066 + ... + 7391.

It is an arithmetic number, because the mean of its divisors is an integer number (3625278).

Almost surely, 2^14487491 is an apocalyptic number.

14487491 is a deficient number, since it is larger than the sum of its proper divisors (13621).

14487491 is a wasteful number, since it uses less digits than its factorization.

14487491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13620.

The product of its digits is 32256, while the sum is 38.

The square root of 14487491 is about 3806.2436863659. The cubic root of 14487491 is about 243.7798056035.

It can be divided in two parts, 14487 and 491, that multiplied together give a palindrome (7113117).

The spelling of 14487491 in words is "fourteen million, four hundred eighty-seven thousand, four hundred ninety-one".