1296272 has 10 divisors (see below), whose sum is σ = 2511558. Its totient is φ = 648128.

The previous prime is 1296227. The next prime is 1296277. The reversal of 1296272 is 2726921.

It can be written as a sum of positive squares in only one way, i.e., 1290496 + 5776 = 1136^2 + 76^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40493 + ... + 40524.

2^1296272 is an apocalyptic number.

It is an amenable number.

1296272 is a deficient number, since it is larger than the sum of its proper divisors (1215286).

1296272 is an equidigital number, since it uses as much as digits as its factorization.

1296272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81025 (or 81019 counting only the distinct ones).

The product of its digits is 3024, while the sum is 29.

The square root of 1296272 is about 1138.5394152158. The cubic root of 1296272 is about 109.0348624562.

The spelling of 1296272 in words is "one million, two hundred ninety-six thousand, two hundred seventy-two".