1601536433 has 24 divisors (see below), whose sum is σ = 1883154600. Its totient is φ = 1357993728.

The previous prime is 1601536393. The next prime is 1601536441. The reversal of 1601536433 is 3346351061.

It can be written as a sum of positive squares in 4 ways, for example, as 663217009 + 938319424 = 25753^2 + 30632^2 .

It is not a de Polignac number, because 1601536433 - 2⁶ = 1601536369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1601536433.

It is not an unprimeable number, because it can be changed into a prime (1601536463) 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 23 ways as a sum of consecutive naturals, for example, 3146183 + ... + 3146691.

It is an arithmetic number, because the mean of its divisors is an integer number (78464775).

Almost surely, 2^1601536433 is an apocalyptic number.

It is an amenable number.

1601536433 is a deficient number, since it is larger than the sum of its proper divisors (281618167).

1601536433 is a wasteful number, since it uses less digits than its factorization.

1601536433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089 (or 1082 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 1601536433 is about 40019.2008041140. The cubic root of 1601536433 is about 1169.9813552925.

Adding to 1601536433 its reverse (3346351061), we get a palindrome (4947887494).

The spelling of 1601536433 in words is "one billion, six hundred one million, five hundred thirty-six thousand, four hundred thirty-three".