1225544601 has 8 divisors (see below), whose sum is σ = 1634853024. Its totient is φ = 816632960.

The previous prime is 1225544587. The next prime is 1225544623. The reversal of 1225544601 is 1064455221.

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 1225544601 - 2¹⁰ = 1225543577 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1225544641) 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, 91911 + ... + 104396.

It is an arithmetic number, because the mean of its divisors is an integer number (204356628).

Almost surely, 2^1225544601 is an apocalyptic number.

It is an amenable number.

1225544601 is a deficient number, since it is larger than the sum of its proper divisors (409308423).

1225544601 is a wasteful number, since it uses less digits than its factorization.

1225544601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198391.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 1225544601 is about 35007.7791497833. The cubic root of 1225544601 is about 1070.1460193188.

Adding to 1225544601 its reverse (1064455221), we get a palindrome (2289999822).

The spelling of 1225544601 in words is "one billion, two hundred twenty-five million, five hundred forty-four thousand, six hundred one".