1287095 has 8 divisors (see below), whose sum is σ = 1577664. Its totient is φ = 1007584.

The previous prime is 1287071. The next prime is 1287101. The reversal of 1287095 is 5907821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1287095 - 2⁸ = 1286839 is a prime.

It is a super-2 number, since 2×1287095² = 3313227078050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2504 + ... + 2973.

It is an arithmetic number, because the mean of its divisors is an integer number (197208).

2^1287095 is an apocalyptic number.

1287095 is a deficient number, since it is larger than the sum of its proper divisors (290569).

1287095 is an equidigital number, since it uses as much as digits as its factorization.

1287095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5529.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1287095 is about 1134.5020934313. The cubic root of 1287095 is about 108.7769475652.

It can be divided in two parts, 128709 and 5, that multiplied together give a triangular number (643545 = T₁₁₃₄).

The spelling of 1287095 in words is "one million, two hundred eighty-seven thousand, ninety-five".