1265205 has 8 divisors (see below), whose sum is σ = 2024352. Its totient is φ = 674768.

The previous prime is 1265197. The next prime is 1265233. The reversal of 1265205 is 5025621.

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

It is a cyclic number.

It is not a de Polignac number, because 1265205 - 2³ = 1265197 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 42159 + ... + 42188.

It is an arithmetic number, because the mean of its divisors is an integer number (253044).

2^1265205 is an apocalyptic number.

1265205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1265205 is a deficient number, since it is larger than the sum of its proper divisors (759147).

1265205 is an equidigital number, since it uses as much as digits as its factorization.

1265205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84355.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1265205 is about 1124.8133178443. The cubic root of 1265205 is about 108.1567511195.

The spelling of 1265205 in words is "one million, two hundred sixty-five thousand, two hundred five".