1285227 has 28 divisors (see below), whose sum is σ = 2019864. Its totient is φ = 816480.

The previous prime is 1285223. The next prime is 1285231. The reversal of 1285227 is 7225821.

It is an interprime number because it is at equal distance from previous prime (1285223) and next prime (1285231).

It is not a de Polignac number, because 1285227 - 2² = 1285223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1285227.

It is not an unprimeable number, because it can be changed into a prime (1285223) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 29868 + ... + 29910.

It is an arithmetic number, because the mean of its divisors is an integer number (72138).

2^1285227 is an apocalyptic number.

1285227 is a deficient number, since it is larger than the sum of its proper divisors (734637).

1285227 is an frugal number, since it uses more digits than its factorization.

1285227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 87 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 1285227 is about 1133.6785258617. The cubic root of 1285227 is about 108.7242983257.

The spelling of 1285227 in words is "one million, two hundred eighty-five thousand, two hundred twenty-seven".