1225065 has 8 divisors (see below), whose sum is σ = 1960128. Its totient is φ = 653360.

The previous prime is 1225061. The next prime is 1225067. The reversal of 1225065 is 5605221.

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

It is not a de Polignac number, because 1225065 - 2² = 1225061 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1225061) 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, 40821 + ... + 40850.

It is an arithmetic number, because the mean of its divisors is an integer number (245016).

2^1225065 is an apocalyptic number.

1225065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1225065 is a deficient number, since it is larger than the sum of its proper divisors (735063).

1225065 is an equidigital number, since it uses as much as digits as its factorization.

1225065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81679.

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

The square root of 1225065 is about 1106.8265446763. The cubic root of 1225065 is about 107.0006405179. Note that the first 3 decimals are identical.

The spelling of 1225065 in words is "one million, two hundred twenty-five thousand, sixty-five".