1286995 has 4 divisors (see below), whose sum is σ = 1544400. Its totient is φ = 1029592.

The previous prime is 1286983. The next prime is 1287007. The reversal of 1286995 is 5996821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5996821 = 281 ⋅21341.

It is an interprime number because it is at equal distance from previous prime (1286983) and next prime (1287007).

It is a cyclic number.

It is not a de Polignac number, because 1286995 - 2¹³ = 1278803 is a prime.

It is a super-2 number, since 2×1286995² = 3312712260050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128695 + ... + 128704.

It is an arithmetic number, because the mean of its divisors is an integer number (386100).

2^1286995 is an apocalyptic number.

1286995 is a deficient number, since it is larger than the sum of its proper divisors (257405).

1286995 is an equidigital number, since it uses as much as digits as its factorization.

1286995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257404.

The product of its digits is 38880, while the sum is 40.

The square root of 1286995 is about 1134.4580203780. The cubic root of 1286995 is about 108.7741303744.

The spelling of 1286995 in words is "one million, two hundred eighty-six thousand, nine hundred ninety-five".