1265105 has 8 divisors (see below), whose sum is σ = 1524264. Its totient is φ = 1008000.

The previous prime is 1265101. The next prime is 1265111. The reversal of 1265105 is 5015621.

It can be written as a sum of positive squares in 4 ways, for example, as 28561 + 1236544 = 169^2 + 1112^2 .

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

It is not a de Polignac number, because 1265105 - 2² = 1265101 is a prime.

It is a super-2 number, since 2×1265105² = 3200981322050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1265101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1805 + ... + 2405.

It is an arithmetic number, because the mean of its divisors is an integer number (190533).

2^1265105 is an apocalyptic number.

It is an amenable number.

1265105 is a deficient number, since it is larger than the sum of its proper divisors (259159).

1265105 is an equidigital number, since it uses as much as digits as its factorization.

1265105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1265105 is about 1124.7688651452. The cubic root of 1265105 is about 108.1539015259.

The spelling of 1265105 in words is "one million, two hundred sixty-five thousand, one hundred five".