1265271 has 8 divisors (see below), whose sum is σ = 1928064. Its totient is φ = 723000.

The previous prime is 1265249. The next prime is 1265273. The reversal of 1265271 is 1725621.

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

It is not a de Polignac number, because 1265271 - 2¹³ = 1257079 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30105 + ... + 30146.

It is an arithmetic number, because the mean of its divisors is an integer number (241008).

2^1265271 is an apocalyptic number.

1265271 is a deficient number, since it is larger than the sum of its proper divisors (662793).

1265271 is an equidigital number, since it uses as much as digits as its factorization.

1265271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60261.

The product of its digits is 840, while the sum is 24.

The square root of 1265271 is about 1124.8426556634. The cubic root of 1265271 is about 108.1586317690.

The spelling of 1265271 in words is "one million, two hundred sixty-five thousand, two hundred seventy-one".