1225006535 has 8 divisors (see below), whose sum is σ = 1475203920. Its totient is φ = 976541184.

The previous prime is 1225006529. The next prime is 1225006537. The reversal of 1225006535 is 5356005221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1225006535 - 2¹⁶ = 1224940999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1225006498 and 1225006507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225006537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431450 + ... + 434279.

It is an arithmetic number, because the mean of its divisors is an integer number (184400490).

Almost surely, 2^1225006535 is an apocalyptic number.

1225006535 is a deficient number, since it is larger than the sum of its proper divisors (250197385).

1225006535 is an equidigital number, since it uses as much as digits as its factorization.

1225006535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866017.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1225006535 is about 35000.0933570183. The cubic root of 1225006535 is about 1069.9893832469.

The spelling of 1225006535 in words is "one billion, two hundred twenty-five million, six thousand, five hundred thirty-five".