1275285 has 32 divisors (see below), whose sum is σ = 2280960. Its totient is φ = 603200.

The previous prime is 1275283. The next prime is 1275293. The reversal of 1275285 is 5825721.

It is not a de Polignac number, because 1275285 - 2¹ = 1275283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9670 + ... + 9800.

It is an arithmetic number, because the mean of its divisors is an integer number (71280).

2^1275285 is an apocalyptic number.

1275285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1275285 is a deficient number, since it is larger than the sum of its proper divisors (1005675).

1275285 is a wasteful number, since it uses less digits than its factorization.

1275285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209.

The product of its digits is 5600, while the sum is 30.

The square root of 1275285 is about 1129.2851721332. The cubic root of 1275285 is about 108.4432231419.

The spelling of 1275285 in words is "one million, two hundred seventy-five thousand, two hundred eighty-five".