1301285 has 8 divisors (see below), whose sum is σ = 1568376. Its totient is φ = 1036480.

The previous prime is 1301281. The next prime is 1301297. The reversal of 1301285 is 5821031.

It can be written as a sum of positive squares in 4 ways, for example, as 6241 + 1295044 = 79^2 + 1138^2 .

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

It is not a de Polignac number, because 1301285 - 2² = 1301281 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301281) 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, 1175 + ... + 1995.

It is an arithmetic number, because the mean of its divisors is an integer number (196047).

2^1301285 is an apocalyptic number.

It is an amenable number.

1301285 is a deficient number, since it is larger than the sum of its proper divisors (267091).

1301285 is an equidigital number, since it uses as much as digits as its factorization.

1301285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1301285 is about 1140.7387956934. The cubic root of 1301285 is about 109.1752364605.

The spelling of 1301285 in words is "one million, three hundred one thousand, two hundred eighty-five".