1601255333 has 8 divisors (see below), whose sum is σ = 1610863320. Its totient is φ = 1591672320.

The previous prime is 1601255323. The next prime is 1601255353. The reversal of 1601255333 is 3335521061.

It can be written as a sum of positive squares in 4 ways, for example, as 420783169 + 1180472164 = 20513^2 + 34358^2 .

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 1601255333 - 2⁴ = 1601255317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1601255296 and 1601255305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601255323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131291 + ... + 142967.

It is an arithmetic number, because the mean of its divisors is an integer number (201357915).

Almost surely, 2^1601255333 is an apocalyptic number.

It is an amenable number.

1601255333 is a deficient number, since it is larger than the sum of its proper divisors (9607987).

1601255333 is a wasteful number, since it uses less digits than its factorization.

1601255333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12487.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 1601255333 is about 40015.6885858534. The cubic root of 1601255333 is about 1169.9128999860.

Adding to 1601255333 its reverse (3335521061), we get a palindrome (4936776394).

The spelling of 1601255333 in words is "one billion, six hundred one million, two hundred fifty-five thousand, three hundred thirty-three".