1601225433 has 12 divisors (see below), whose sum is σ = 2338869780. Its totient is φ = 1055488896.

The previous prime is 1601225413. The next prime is 1601225473. The reversal of 1601225433 is 3345221061.

1601225433 is a `hidden beast` number, since 1 + 6 + 0 + 1 + 225 + 433 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 504092304 + 1097133129 = 22452^2 + 33123^2 .

It is not a de Polignac number, because 1601225433 - 2⁸ = 1601225177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1601225397 and 1601225406.

It is not an unprimeable number, because it can be changed into a prime (1601225413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 998716 + ... + 1000317.

It is an arithmetic number, because the mean of its divisors is an integer number (194905815).

Almost surely, 2^1601225433 is an apocalyptic number.

It is an amenable number.

1601225433 is a deficient number, since it is larger than the sum of its proper divisors (737644347).

1601225433 is a wasteful number, since it uses less digits than its factorization.

1601225433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999128 (or 1999125 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1601225433 is about 40015.3149806421. The cubic root of 1601225433 is about 1169.9056180714.

Adding to 1601225433 its reverse (3345221061), we get a palindrome (4946446494).

The spelling of 1601225433 in words is "one billion, six hundred one million, two hundred twenty-five thousand, four hundred thirty-three".