1296506 has 8 divisors (see below), whose sum is σ = 1957620. Its totient is φ = 643968.

The previous prime is 1296499. The next prime is 1296511. The reversal of 1296506 is 6056921.

It can be written as a sum of positive squares in 2 ways, for example, as 1288225 + 8281 = 1135^2 + 91^2 .

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

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, 1751 + ... + 2378.

2^1296506 is an apocalyptic number.

1296506 is a deficient number, since it is larger than the sum of its proper divisors (661114).

1296506 is a wasteful number, since it uses less digits than its factorization.

1296506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4288.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1296506 is about 1138.6421738193. The cubic root of 1296506 is about 109.0414229678.

The spelling of 1296506 in words is "one million, two hundred ninety-six thousand, five hundred six".