1225385 has 16 divisors (see below), whose sum is σ = 1698816. Its totient is φ = 831168.

The previous prime is 1225381. The next prime is 1225397. The reversal of 1225385 is 5835221.

It is a cyclic number.

It is not a de Polignac number, because 1225385 - 2² = 1225381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5384 + ... + 5606.

It is an arithmetic number, because the mean of its divisors is an integer number (106176).

2^1225385 is an apocalyptic number.

It is an amenable number.

1225385 is a deficient number, since it is larger than the sum of its proper divisors (473431).

1225385 is a wasteful number, since it uses less digits than its factorization.

1225385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392.

The product of its digits is 2400, while the sum is 26.

The square root of 1225385 is about 1106.9710926668. The cubic root of 1225385 is about 107.0099562750.

The spelling of 1225385 in words is "one million, two hundred twenty-five thousand, three hundred eighty-five".