14987231 has 4 divisors (see below), whose sum is σ = 17128272. Its totient is φ = 12846192.

The previous prime is 14987213. The next prime is 14987233. The reversal of 14987231 is 13278941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13278941 = 13 ⋅1021457.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14987231 is a prime.

It is a super-2 number, since 2×14987231² = 449234186094722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14987191 and 14987200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14987233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070510 + ... + 1070523.

It is an arithmetic number, because the mean of its divisors is an integer number (4282068).

Almost surely, 2^14987231 is an apocalyptic number.

14987231 is a deficient number, since it is larger than the sum of its proper divisors (2141041).

14987231 is an equidigital number, since it uses as much as digits as its factorization.

14987231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141040.

The product of its digits is 12096, while the sum is 35.

The square root of 14987231 is about 3871.3345244244. The cubic root of 14987231 is about 246.5512074287.

The spelling of 14987231 in words is "fourteen million, nine hundred eighty-seven thousand, two hundred thirty-one".