14261986 has 4 divisors (see below), whose sum is σ = 21392982. Its totient is φ = 7130992.

The previous prime is 14261971. The next prime is 14261999. The reversal of 14261986 is 68916241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68916241 = 47 ⋅1466303.

It can be written as a sum of positive squares in only one way, i.e., 7733961 + 6528025 = 2781^2 + 2555^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3565495 + ... + 3565498.

Almost surely, 2^14261986 is an apocalyptic number.

14261986 is a deficient number, since it is larger than the sum of its proper divisors (7130996).

14261986 is an equidigital number, since it uses as much as digits as its factorization.

14261986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7130995.

The product of its digits is 20736, while the sum is 37.

The square root of 14261986 is about 3776.5044684205. The cubic root of 14261986 is about 242.5083342868.

It can be divided in two parts, 142 and 61986, that added together give a triangular number (62128 = T₃₅₂).

The spelling of 14261986 in words is "fourteen million, two hundred sixty-one thousand, nine hundred eighty-six".