1225575 has 36 divisors (see below), whose sum is σ = 2369640. Its totient is φ = 601920.

The previous prime is 1225571. The next prime is 1225577. The reversal of 1225575 is 5755221.

It is a happy number.

It is not a de Polignac number, because 1225575 - 2² = 1225571 is a prime.

It is a d-powerful number, because it can be written as 1 + 2⁶ + 2¹³ + 5² + 5⁵ + 7⁷ + 5⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225571) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2716 + ... + 3134.

2^1225575 is an apocalyptic number.

1225575 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1225575 is a deficient number, since it is larger than the sum of its proper divisors (1144065).

1225575 is a wasteful number, since it uses less digits than its factorization.

1225575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 440 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 1225575 is about 1107.0569091063. The cubic root of 1225575 is about 107.0154867385.

The spelling of 1225575 in words is "one million, two hundred twenty-five thousand, five hundred seventy-five".