1296016 has 10 divisors (see below), whose sum is σ = 2511062. Its totient is φ = 648000.

The previous prime is 1296011. The next prime is 1296019. The reversal of 1296016 is 6106921.

It can be written as a sum of positive squares in only one way, i.e., 1254400 + 41616 = 1120^2 + 204^2 .

It is not an unprimeable number, because it can be changed into a prime (1296011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40485 + ... + 40516.

2^1296016 is an apocalyptic number.

1296016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1296016 is a deficient number, since it is larger than the sum of its proper divisors (1215046).

1296016 is an equidigital number, since it uses as much as digits as its factorization.

1296016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81009 (or 81003 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1296016 is about 1138.4269849226. The cubic root of 1296016 is about 109.0276842398.

The spelling of 1296016 in words is "one million, two hundred ninety-six thousand, sixteen".