1296556 has 24 divisors (see below), whose sum is σ = 2509920. Its totient is φ = 582912.

The previous prime is 1296551. The next prime is 1296557. The reversal of 1296556 is 6556921.

It is a happy number.

It is a super-2 number, since 2×1296556² = 3362114922272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (1296551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1150 + ... + 1978.

It is an arithmetic number, because the mean of its divisors is an integer number (104580).

2^1296556 is an apocalyptic number.

It is an amenable number.

1296556 is a deficient number, since it is larger than the sum of its proper divisors (1213364).

1296556 is a wasteful number, since it uses less digits than its factorization.

1296556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873 (or 871 counting only the distinct ones).

The product of its digits is 16200, while the sum is 34.

The square root of 1296556 is about 1138.6641295834. The cubic root of 1296556 is about 109.0428246842.

The spelling of 1296556 in words is "one million, two hundred ninety-six thousand, five hundred fifty-six".