14518987 has 4 divisors (see below), whose sum is σ = 16593136. Its totient is φ = 12444840.

The previous prime is 14518981. The next prime is 14518991. The reversal of 14518987 is 78981541.

It is a happy number.

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 14518987 - 2⁷ = 14518859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14518981) 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, 1037064 + ... + 1037077.

It is an arithmetic number, because the mean of its divisors is an integer number (4148284).

Almost surely, 2^14518987 is an apocalyptic number.

14518987 is a deficient number, since it is larger than the sum of its proper divisors (2074149).

14518987 is an equidigital number, since it uses as much as digits as its factorization.

14518987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074148.

The product of its digits is 80640, while the sum is 43.

The square root of 14518987 is about 3810.3788525552. The cubic root of 14518987 is about 243.9563379278.

It can be divided in two parts, 1451898 and 7, that multiplied together give a triangular number (10163286 = T₄₅₀₈).

The spelling of 14518987 in words is "fourteen million, five hundred eighteen thousand, nine hundred eighty-seven".