1275897 has 8 divisors (see below), whose sum is σ = 1944256. Its totient is φ = 729072.

The previous prime is 1275893. The next prime is 1275899. The reversal of 1275897 is 7985721.

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

It is not a de Polignac number, because 1275897 - 2² = 1275893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275893) 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, 30358 + ... + 30399.

It is an arithmetic number, because the mean of its divisors is an integer number (243032).

2^1275897 is an apocalyptic number.

It is an amenable number.

1275897 is a deficient number, since it is larger than the sum of its proper divisors (668359).

1275897 is an equidigital number, since it uses as much as digits as its factorization.

1275897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60767.

The product of its digits is 35280, while the sum is 39.

The square root of 1275897 is about 1129.5561075042. The cubic root of 1275897 is about 108.4605674059.

The spelling of 1275897 in words is "one million, two hundred seventy-five thousand, eight hundred ninety-seven".