1296087 has 16 divisors (see below), whose sum is σ = 1881600. Its totient is φ = 788832.

The previous prime is 1296077. The next prime is 1296089. The reversal of 1296087 is 7806921.

It is not a de Polignac number, because 1296087 - 2⁶ = 1296023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296089) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6414 + ... + 6612.

It is an arithmetic number, because the mean of its divisors is an integer number (117600).

2^1296087 is an apocalyptic number.

1296087 is a deficient number, since it is larger than the sum of its proper divisors (585513).

1296087 is a wasteful number, since it uses less digits than its factorization.

1296087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 1296087 is about 1138.4581678744. The cubic root of 1296087 is about 109.0296751680.

It can be divided in two parts, 129 and 6087, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 1296087 in words is "one million, two hundred ninety-six thousand, eighty-seven".