1227825 has 48 divisors (see below), whose sum is σ = 2410560. Its totient is φ = 610560.

The previous prime is 1227797. The next prime is 1227829. The reversal of 1227825 is 5287221.

It is not a de Polignac number, because 1227825 - 2¹⁰ = 1226801 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1227829) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11422 + ... + 11528.

It is an arithmetic number, because the mean of its divisors is an integer number (50220).

2^1227825 is an apocalyptic number.

1227825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1227825 is a deficient number, since it is larger than the sum of its proper divisors (1182735).

1227825 is a wasteful number, since it uses less digits than its factorization.

1227825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 132 counting only the distinct ones).

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

The square root of 1227825 is about 1108.0726510478. The cubic root of 1227825 is about 107.0809356489.

The spelling of 1227825 in words is "one million, two hundred twenty-seven thousand, eight hundred twenty-five".